List of prolific inventors

Thomas Alva Edison was widely known as the America's most prolific inventor, even after his death in 1931.[1][2] He held a total of 1,093 U.S. patents (1,084 utility patents and 9 design patents).[3] In 2003, his patent count was exceeded by Japanese inventor Shunpei Yamazaki.[4] On February 26, 2008, Yamazaki's patent count was exceeded by Australian inventor Kia Silverbrook.[5] In 2017, Silverbrook's patent count was exceeded by Yamazaki.

Worldwide utility patents

Inventors with 200 or more worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.

Inventor # of patents Country Active Main fields of invention Ref
Shunpei Yamazaki 5575  Japan 1976-2019 Thin film transistors, Liquid crystal displays, Solar cells, Flash memory, OLED [6][4][7][8][9][10][11][12][13][14][15][16]
Kia Silverbrook 4747  Australia 1994-2018 Printing, Digital paper, Internet, Electronics, CGI, Chemical, DNA, Lab-on-a-chip, MEMS, Mechanical, VLSI [17][18][4][5][7][8][9][10][11][12][13][14][15]
Kangguo Cheng 1945  USA 2004-2019 Semiconductor device fabrication, Semiconductor memory, Semiconductor device [19][20]
Lowell L. Wood, Jr. 1905  USA 1977-2019 Various [21][22][15]
Roderick A. Hyde 1808  USA 2001-2019 Various [23][24][15]
Jun Koyama 1391  Japan 1991-2019 Thin film transistors, Liquid crystal displays, OLED [25][26]
Gurtej Sandhu 1332  India 1991-2019 Thin film processes and materials, VLSI, Semiconductor device fabrication [27][28][7][8][9][16]
Paul Lapstun 1291  Australia 2000-2019 Printing, Digital paper, Internet, Electronics, CGI, VLSI [29][30][4][9][10][11][12][13][14]
Clarence T. Tegreene 1191  USA 2000-2019 Various [31][32]
Leonard Forbes 1108  Canada 1991-2019 Semiconductor Memories, CCDs, Thin film processes and materials, VLSI [33][34][4][8][9][10][12]
Thomas Edison 1084  USA 1847(b)-1931(d) Electric power, Lighting, Batteries, Phonograph, Cement, Telegraphy, Mining [2][3][4][5][35][36]
Shou-Shan Fan 1081  China 2006-2019 Carbon nanotubes and their applications [37][38]
Edward K. Y. Jung 1074  USA 1996-2019 Various [39][40][15]
Donald E. Weder 1000  USA 1976-2017 Florist supplies [41][42][4][7][8][9][16]
George Albert Lyon 993  Canada 1882(b)-1961(d) Automotive, Stainless steel products [4][43]
Michael J. Sullivan 991  USA 1977-2019 Golf balls [44][45]
Jay S. Walker 964  USA 1998-2019 Gaming machines [46][47][9][14]
Rick Allen Hamilton II 955  USA 1999-2019 Various [48][49][15]
John F. O'Connor 949  USA 1864(b)-1938(d) Railway draft gearing [4][50]
Jordin T. Kare 939  USA 1992-2019 Various [51][52]
Melvin De Groote 925  USA 1895(b)-1963(d) Chemical de-emulsifiers [2][4]
Francis H. Richards 894  USA 1850(b)-19??(d) Mechanical, automation [2][4]
Nathan Myhrvold 868  USA 1994-2019 Various [53][54]
Ahmadreza Rofougaran 862  USA 2002-2019 Radio Frequency Integrated Circuits [55][56]
Mark Malamud 852  USA 1997-2019 Various [57][58][15]
Robert W. Lord 831  USA 2003-2019 Various [59][60]
Royce A. Levien 826  USA 1997-2019 Various [61][62][15]
Muriel Y. Ishikawa 808  USA 2002-2019 Various [63][64][65]
William H. Eby 792  USA 1994-2019 Transgenic soybeans [66][67]
Warren Farnworth 772  USA 1990-2017 Semiconductor packaging [68][69][7][8][9]
Salman Akram 764  USA 1995-2019 Semiconductor packaging [70][71][7][8][9]
Carleton Ellis 753  USA 1876(b)-1941(d) Margarine, Polyester, Anti-knock gasoline, Paint stripper [50][72]
Jeyhan Karaoguz 748  USA 1996-2019 Wireless communications, Computer networks [73][74]
Hideo Ando 729  Japan 1983-2017 Optical recording [75][76][14]
George Spector 722  USA 1976-1998 Gadgets, Toys [77][78][7][8]
Austin L. Gurney 714  USA 1999-2019 Proteins, Antibodies [79][80][10][11]
Ali Khakifirooz 713  USA 2011-2019 Integrated Circuits, CMOS, Semiconductor device fabrication [81][82]
Elihu Thomson 696  UK 1853(b)-1937(d) Electric power, Arc lamp, Electric motors, Lightning arrester, Arc welder [2][50]
Tetsujiro Kondo 696  Japan 1987-2019 Signal processing, Image processing [83][84]
Bruce B. Doris 663  USA 1995-2019 Integrated Circuits, CMOS, DRAM, Semiconductor device fabrication [85][86]
John M. Santosuosso 655  USA 2001-2019 Various [87][88]
William I. Wood 653  USA 1981-2016 Proteins, Antibodies [89][90][10][11]
Simon R. Walmsley 651  Australia 1995-2015 Printing, Electronics, VLSI, Cryptography [91][92][13][14]
Eric C. Leuthardt 633  USA 2006-2019 Medical devices [93][94]
Clifford A. Pickover 632  USA 1992-2019 Various [95][96]
Audrey D. Goddard 625  USA 1997-2019 Proteins, Antibodies [97][98][10][11]
Edward J. Nowak 619  USA 1979-2019 Semiconductor device fabrication, Semiconductor memory, Semiconductor device [99][100]
Devendra K. Sadana 618  India 1983-2019 Solar cells, OLED, Integrated Circuits, CMOS, DRAM, LEDs [101][102]
Jerome Lemelson 606  USA 1923(b)-1997(d) Toys, Industrial robots, Cordless telephones, Fax machines, Videocassette recorders [103][2][16][104]
Tadahiro Ohmi 597  Japan 1981-2018 Thin film processes and materials, Semiconductor device fabrication [105][106]
Kie Y Ahn 596  USA 1976-2018 Thin film processes and materials, VLSI, Semiconductor device fabrication [107][108]
Béla Barényi 595  Austria 1907(b)-1997(d) Passive safety in automobiles [109][110]
Chih-Chao Yang 594  USA 2003-2019 Integrated Circuits [111][112]
Paul J. Godowski 579  USA 1994-2014 Proteins, Antibodies [113][114][10][11]
Artur Fischer 570  Germany 1976-2002 Fasteners, Construction toys [115][116][117]
Jeffrey P. Gambino 552  USA 1992-2019 MEMS, CMOS, BiCMOS, DRAM, Image Sensors, RF, Biosensors, 3D Integrated Circuits [118][119]
Louis L. Hsu 551  USA 1988-2016 Various [120][121]
Victoria Y. H. Wood 544  USA 2009-2019 Various [122][123]
Edwin H. Land 535  USA 1909(b)-1991(d) Instant photography, Polarizing film [124][125]
Ruilong Xie 531  USA 2013-2019 Semiconductor device, CMOS, Semiconductor device fabrication [126][127]
Ronald S. Cok 525  USA 1986-2019 OLED displays; image processing [128][129]
Gregory J. Boss 525  USA 2008-2019 Various [130][131]
Henri Dreyfus 524   Switzerland 1882(b)-1944(d) Polymers, Synthetic fibers, Dyes [132][133]
Anthony K. Stamper 518  USA 1998-2019 MEMS, CMOS, BiCMOS, Silicon-germanium [134][135]
Kai-Li Jiang 516  China 2006-2019 Carbon nanotubes and their applications [136][137]
Clyde C. Farmer 513  USA 18??(b)-19??(d) Railway air brakes [138][50][139]
Heinz Focke 512  Germany 1976-2013 Cigarette packaging [140][141][7]
Mark I. Gardner 511  USA 1994-2010 Consumer electronics, Energy, Computers, Semiconductors, Physics [142][143][7][8]
Ravi K. Arimilli 508  India 1992-2019 Computer architecture, Semiconductor memory, Cache coherence, Symmetric multiprocessing [144][145]
Belgacem Haba 506  Algeria 1991-2019 Semiconductor manufacturing [146][147]
Louis H. Morin 503  USA 18??(b)-19??(d) Fasteners, Locks, Bobbins [148][139]
Tobin A. King 501  Australia 2000-2018 Printing, Digital paper, Mechanical [149][150]
Robert S. Langer 494  USA 1983-2019 Biotechnology, Drug delivery, Tissue engineering [151][152]
James M. Hart 487  USA 1988-2019 Motor vehicle transmission [153][154]
Lisa Seacat DeLuca 483  USA 2009-2019 Various [155][156]
Jack A. Mandelman 481  USA 1987-2014 Various [157][158]
Sarbajit K. Rakshit 477  India 2013-2019 Various [159][160]
Akira Nakazawa 459  Australia 1980-2019 Printing, Mechanical [161][162]
Frederick A. Ware 452  USA 1981-2019 Chip design [163][164]
Eberhard Ammermann 451  Germany 1979-2015 Fungicides [165][166][16]
Thomas E. Murray 449  USA 1860(b)-1929(d) Electrical, HVAC, Wheels, Metal working, Light dimmer [167][168]
John L. Melanson 448  USA 1978-2019 Integrated circuits, semiconductors, mixed-signal products, signal processing, audio and voice components, hearing aids, LED lighting, and motor control [169][170]
Brian M. O'Connell 446  USA 2009-2019 Various [171][172]
Hongyong Zhang 440  Japan 1993-2016 Thin film transistors, Liquid crystal displays [173][174]
Scott H. Wittkopp 434  USA 2001-2019 Motor vehicle transmission [175][176][14]
Vincent J. Zimmer 428  USA 1999-2019 Computer software and firmware [177][178]
John Hays Hammond, Jr. 417  USA 1888(b)-1965(d) Radio control, Radio communications, Torpedoes [179][180]
Hossein Eslambolchi 416  USA 1993-2019 Telecommunications, Network intelligence, information Technology, communications technology [181][182]
Brent A. Anderson 413  USA 2001-2019 Semiconductor device fabrication, Semiconductor memory, Semiconductor device [183][184]
Cary L. Bates 412  USA 1994-2019 Programming tools, DBX, Memory debuggers [185][186][187]
Wilhelm Brandes 411  Germany 1976-2010 Fungicides [188][189]
Xuemin (Sherman) Chen 410  USA 1997-2018 Computer networks, Integrated Circuits, Signal Processing [190][191][192][193][194]
Pouya Hashemi 402  USA 2013-2019 Semiconductor, VLSI, CMOS logic and memory, cognitive [195][196]
Stanford R. Ovshinsky 400  USA 1922(b)-2012(d) Batteries, Solar cells, Liquid crystal displays, Hydrogen fuel cells, Computer data storage [197][198][199]
Lawrence A. Clevenger 399  USA 1996-2019 Semiconductor, Cognitive, Memory, Security, Analytics [200][201]
Esmael H. Dinan 393  USA 2006-2019 Communication networks [202][203]
Josef Theurer 388  Austria 1976-2016 Railroad maintenance machines [204][205][16]
David V. Horak 387  USA 1992-2018 Various [206][207]
Paul W. Dent 382  USA 1984-2019 Wireless communications [208][209]
Wael W. Diab 381  USA 2003-2019 Computer networks [210][211]
George P. Liang 379  China 1983-2018 Gas turbine cooling [212][213]
Hans-Joachim Santel 377  Germany 1986-2013 Herbicides, Pesticides, Organic chemistry [214][215][16]
Gisela Lorenz 374  Germany 1990-2015 Fungicides, Organic chemistry [216][217][16]
Bengt Lindoff 369  Sweden 2000-2019 Wireless communications [218][219]
Jeffrey E. Stahmann 368  USA 1994-2019 Medical devices [220][221]
Garry R. Jackson 367  Australia 2001-2016 Printing, Mechanical [222][223]
William Daniel Hillis 362  USA 1986-2019 Various [224][225]
George Westinghouse 361  USA 1846(b)-1914(d) Electric power, Electricity meter, Railway air brake, Steam engines [226][227][228]
Norman M. Berry 359  Australia 2006-2019 Printing, Mechanical [229][230]
Valentina Salapura 357  USA 2004-2019 Various [231][232]
Carl J. Radens 355  USA 1994-2019 Integrated Circuits, CMOS, DRAM, Semiconductor device fabrication [233][234]
Mark W. Kroll 354  USA 1987-2019 Implantable medical devices [235][236][237]
Robert R. Schmidt 350  Germany 1971-2005 Herbicides, Fungicides, Organic chemistry [238][239]
Elizabeth A. Sweeney 350  USA 2010-2019 Various [240][241]
Dean L. Kamen 347  USA 1979-2019 Battery-powered electric vehicles, Medical devices, Stirling engines, Water purification, Wheelchairs [242][243]
Ajith K. Kumar 341  India 1984-2019 Electric Power, Energy Management, Rail Transportation, Mining [244][245]
Michael (S.) Tsirkin 340  Israel 2012-2019 Virtual Machines, I/O Data Processing, Computer Graphics, Power Management, Computer Memory, Computer Networks, Distributed Data Processing, Fault Recovery, Data Structures [246][247]
Hanson S. Gifford III 339  USA 1986-2019 Medical devices [248][249]
Timothy J. Slegel 339  USA 1993-2019 Computer architecture [250][251]
Keith R. Walker 335  Saudi Arabia 2003-2019 Various [252][253]
Assaf Natanzon 332  Israel 2007-2019 Storage Systems, Data Protection [254][255]
Philip D. Nguyen 331  USA 1992-2019 Oilfield [256][257]
Daniel J. Winarski 325  USA 1982-2019 Various [258][259]
Kulvir S. Bhogal 319  USA 2003-2019 Various [260][261]
Liang Liu 319  China 2005-2019 Carbon nanotubes and their applications [262][263]
Steven L. Teig 316  USA 1995-2019 Integrated Circuits [264][265]
Frank J. Viola 315  USA 1981-2019 Surgical instruments, Medical devices [266][267]
Victor S. Moore 314  USA 1982-2019 Various [268][269]
Jasinder P. Singh 312  USA 2010-2019 Wireless telecommunications [270][271]
Victoria Smith 308  USA 2006-2017 Proteins, Antibodies [272][273]
Robert G. LeTourneau 299  USA 1888(b)-1969(d) Earthworks (engineering), Heavy Equipment, Industrial Machinery [274][275]
Ramachandra Divakaruni 293  USA 2000-2019 Semiconductor device fabrication, Semiconductor memory, Semiconductor device [276][277]
James E. Bostick 292  USA 1993-2019 Various [278][279]
William R. Tonti 291  USA 1994-2016 Integrated Circuits, CMOS, DRAM, Semiconductor device fabrication [280][281]
Zine-Eddine Boutaghou 290  Algeria 1994-2018 Hard disk drive [282][283]
Cyprian E. Uzoh 289  Nigeria 1998-2019 Semiconductor processing [284][285]
Adam Heller 287  Romania 1968-2019 Solar cells, Glucose meters, Lasers [286][287][288]
Jeffrey W. Sleight 286  USA 1998-2019 Integrated Circuits, CMOS, Semiconductor device fabrication [289][290]
Madhusudan K. Iyengar 282  India 2005-2019 Chip Cooling [291][292]
Brent Keeth 281  USA 1994-2019 Integrated Circuits, CMOS, DRAM [293][294]
Daniel C. Edelstein 280  USA 1991-2019 Semiconductor manufacturing [295][296]
Dorin Comaniciu 279  USA 2003-2019 Machine Intelligence, Medical Imaging, Image-Guided Surgery, Computer Vision [297][298]
Michael A. Rothman 275  USA 2001-2019 Computer software and firmware [299][300]
John M. Ganci 275  USA 2009-2019 Various [301][302]
Hartley Owen 267  USA 1976-2010 Fluid catalytic cracking [303][304]
Christopher J. Dawson 263  USA 2006-2019 Various [305][306]
Bran Ferren 262  USA 1986-2019 Computers, Consumer Electronics, Electro-Optical Systems, Medical, User Interfaces, Vehicles, Energy production [307][308]
Rajiv V. Joshi 261  USA 1986-2019 Electronics, analytics [309][310]
Andrew J. Ouderkirk 261  USA 1989-2019 LEDs, Optic Films [311][312]
Takeshi Chujoh 260  Japan 1995-2019 Video processing [313][314]
Yoshihiro Kikuchi 258  Japan 1994-2019 Video processing [315][316]
Sandeep R. Patil 258  India 2008-2019 Various [317][318]
Craig E. Hampel 258  USA 1996-2019 Integrated Circuits [319][320]
Harry (Tom) Graef 254  USA 1976-2019 Business machines, automation [321][322]
Imad Libbus 248  USA 2007-2019 Medical devices [323][324]
Zvi Or-Bach 248  USA 1982-2019 Various [325][326]
Michael L. Fripp 246  USA 2004-2019 Oilfield [327][328]
Nobuyuki Taniguchi 245  Japan 1979-2015 Cameras [329][330]
Johnny M. Shieh 244  USA 1996-2019 Various [331][332]
Philip S. Yu 240  USA 1982-2018 Various [333][334]
Louis B. Rosenberg 236  USA 1995-2019 Augmented Reality, Virtual Reality, HCI [335][336]
James R. Kraemer 233  USA 2008-2019 Various [337][338]
Gerald F. McBrearty 231  USA 1997-2018 Various [339][340]
Seung H. Kang 231  USA 2002-2019 Semiconductor device technologies, MRAM, spintronics, and memory circuit design [341][342]
Thomas J. Kennedy III 230  USA 1992-2019 Sporting Goods, Wind Turbines, Biotechnology [343][344]
Mark A. Horowitz 230  USA 1993-2019 Integrated Circuits [345][346]
Stephen G. Perlman 224  USA 1989-2019 Wireless communications, Cloud gaming, Video compression [347][348]
Dureseti Chidambarrao 221  USA 1995-2017 Integrated Circuits, CMOS, Semiconductor device fabrication [349][350]
Paul Ian Mackey 220  Australia 2008-2016 Printing, Mechanical [351][352]
James W. Seaman 220  USA 2005-2019 Various [353][354]
Jonathan J. Hull 218  USA 1987-2019 Various [355][356]
Mukta Ghate Farooq 216  India 1993-2019 Semiconductor materials and structures, packaging technology, and 3-dimensional silicon integration [357][358]
Sebastian T. Ventrone 210  USA 1989-2019 Semiconductor, Logic, Architecture [359][360]
Rajarshi Gupta 210  India 2004-2019 Wireless networking, Machine Learning, Cybersecurity [361][362]
Gregory McAvoy 209  Ireland 2003-2019 Printing, MEMS [363][364]
Jed H. Rankin 209  USA 2000-2019 Semiconductor Processing, Devices, Memory and Photomasks [365][366]
Hiroshi (You) Yoshioka 205  Japan 1997-2015 Cameras [367][368]
Patrick B. Usoro 205  USA 1999-2016 Motor vehicle transmission, Hybrid Powertrains, Vehicle Thermal Management [369][370]
Benzion Landa 203  Israel 1976-2019 Printing, Photocopier [371][372]
Vijay Narayanan 203  USA 2004-2019 Semiconductor device fabrication, Semiconductor memory, Semiconductor device [373][374]
Sadeg M. Faris 202  Libya 1979-2018 Various [375][376]
Robert E. Fischell 201  USA 1978-2019 Surgical instruments, Medical devices [377][378]
Hui Zang 201  USA 2014-2019 Semiconductor device fabrication, Semiconductor memory, Semiconductor device [379][380]
Ilyas Mohammed 200  USA 2003-2019 Semiconductor manufacturing [381][382]

This table is usually updated every Tuesday evening in US Eastern time, and is current as of December 10, 2019. The columns are defined as follows:

  • Inventor: The name of the inventor.
  • # of patents: This is the number of utility patents that have been issued. Only utility patents (or the international equivalent) are listed, as a utility patent is a patent for an invention. Not all patents are for inventions. Other patent types include: design patents for the ornamental design of an object; plant patents for plant varieties; and reissue patents, where a correction is made to an already granted patent. This list does not include patent applications (patents pending) as there is no guarantee that a patent application actually describes a novel invention until the patent is granted.
  • Country: This is the country of birth or upbringing of the inventor, where known. If unknown, this is the country of residence identified in the inventor's patent filings.
  • Active: The first and last year in which an inventor received a patent issuance, except when activity was prior to digital records, in which case year of birth (b) and death (d) may be substituted. If an inventor's first year is 1976 or a few years after, there may be activity prior to this; earlier dates are not present in the primary source, and would require a secondary source.
  • Main fields of invention: These are the main areas that the inventor is or was active in.

Threshold for inclusion

As the average number of patents per inventor is around 3, some sources define prolific inventors as five times above the average (in terms of patents), leading to a threshold of 15 patents.[383] However, this table currently has an arbitrary cut-off limit for inclusion of 200 patents. This is purely for practical reasons – there are tens of thousands of inventors with more than 15 patents. The threshold of 200 patents means that some famous prolific inventors such as Nikola Tesla are not included in this list, as Tesla had 111 patents.[384][385]

Significance of inventions

This table is a sortable list of the most prolific inventors as measured by utility patents granted. It does not include other types of invention, such as inventions that were never applied for nor granted, for which there is no known source. Nor does the table attempt to measure the significance of an inventor and their inventions. The significance of inventions is often not apparent until many decades after the invention has been made. For recent inventors, it is not yet possible to determine their place in history.

The common symbol for inventiveness, the light bulb, is an example. The first incandescent light bulb was invented by British chemist Sir Humphry Davy in 1802. Many subsequent inventors improved Davy's invention prior to the successful commercialization of electric lighting by Thomas Edison in 1880, 78 years later. Electric lighting continued to be developed. Edison's carbon filament light bulb was made obsolete by the tungsten filament light bulb, invented in 1904 by Sándor Just and Franjo Hanaman. It is this that forms the popular conception of a light bulb, though there are other major forms of lighting. The principle of fluorescent lights was known since 1845, and various inventors, including Edison and Nikola Tesla worked on them without commercial success. Various improvements were made by many other inventors, until General Electric introduced "fluorescent lumiline lamps" commercially in 1938, first available to the public at the 1939 World's Fair. LED lamps also have a long history, with the first light-emitting diode (LED) invented in 1927 by Oleg Losev. LEDs were initially of low brightness, and have been used as indicator lamps and seven-segment displays since 1968. It wasn't until the development of high efficiency blue LEDs by Shuji Nakamura in the 1980s that white LEDs for lighting applications became practical. Although higher cost than incandescent light bulbs, LEDs have higher efficiency and longer life and may finally displace light bulbs in general lighting applications. In each case, more than 50 years passed between the initial invention and commercial success in general lighting applications.

Various published lists

Rankings of prolific inventors have been published at various times. However, until the patent records were digitized, these lists were very tedious to prepare, as many thousands of patent records had to be checked manually. Even after digitization, it is still not a simple process. While the USPTO keeps statistics for annual rankings of inventions assigned to companies, it no longer publishes rankings of individual inventors. The last such list was published by the USPTO in 1998.[16] Also, patents predating 1976 have not yet been digitized in the USPTO records. This means that patents before 1976 will not be included in a USPTO search by inventor name, and the number of patents granted before 1976 must be added to current searches.

In January 1936, Popular Science published a list of the "most prolific living inventors to be found in America today".[50]

Rank Inventor U.S. Patents
1 John F. O'Connor 949
2 Elihu Thomson 696
3 Carleton Ellis 648
4 Henry A. Wise Wood 434
5 John Hays Hammond Jr. 360
6 Clyde C. Farmer 344
7 Ethan I. Dodds 321
8 Edward Weston 309

Thomas Edison was not included in the list, as he died in 1931, five years earlier.

Time Magazine (2000)

On December 4, 2000, Time Magazine published a list of the "top five inventors".[2]

Rank Inventor U.S. Patents
1 Thomas Edison 1,093
2 Melvin De Groote 925
3 Francis H. Richards 894
4 Elihu Thomson 696
5 Jerome Lemelson 554

This list only included U.S. inventors, so omitted Canadian inventor George Albert Lyon, with 993 U.S. patents at the time of publication, Japanese inventor Shunpei Yamazaki, with 745 U.S. patents, and Béla Barényi, with 595 German patents. Also omitted were John F. O'Connor with 949 U.S. patents, and Carleton Ellis, with 753 U.S. patents at the time of publication.

USA Today (2005)

On December 13, 2005, USA Today published a list of "the top 10 living U.S. patent holders":[7]

Rank Inventor U.S. Patents
1 Shunpei Yamazaki 1,432
2 Donald Weder 1,322
3 Kia Silverbrook 810
4 George Spector 723
5 Gurtej Sandhu 576
6 Warren Farnworth 547
7 Salman Akram 527
8 Mark Gardner 512
9 Heinz Focke 508
10 Joseph Straeter 477

This research was performed by ipIQ of Chicago (now "The Patent Board"[386]) and 1790 Analytics[387] of New Jersey. This list only considered living inventors, and thus did not include prolific inventors such as Thomas Edison, Melvin De Groote, and Elihu Thomson. This list included design patents, which are not patents for inventions.

Condé Nast Portfolio (2007)

On October 15, 2007, Condé Nast Portfolio Magazine published a list[8] of "the world's most prolific inventors alive":

Rank Inventor U.S. Patents
1 Shunpei Yamazaki 1,811
2 Kia Silverbrook 1,646
3 Donald Weder 1,350
4 George Spector 722
5 Gurtej Sandhu 674
6 Leonard Forbes 671
7 Warren Farnworth 635
8 Salman Akram 612
9 Mark Gardner 515
10 Joseph Straeter 485

This research was performed by The Patent Board,[386] a Chicago patent research and advisory firm. As with the USA Today list, the Portfolio list only considered living inventors, and thus did not include such prolific inventors as Thomas Edison. This list also included design patents, which are not patents for inventions.

Business Insider (2011)

On May 6, 2011, Business Insider published an article titled: "The Ten Greatest Inventors In The Modern Era"[4] containing the following list:

Rank Inventor U.S. Patents
1 Kia Silverbrook 3,847
2 Shunpei Yamazaki 2,061
3 Thomas Edison 1,084
4 George Albert Lyon 993
5 Paul Lapstun 969
6 Donald Weder 951
7 John F. O'Connor 949
8 Leonard Forbes 948
9 Melvin De Groote 925
10 Francis H. Richards 894

This list included living and dead inventors, and only included granted utility patents (patents for inventions).

Strutpatent.com (2012)

Strutpatent.com publishes a list of the "Top 10 Inventors"[9] listing inventors ranked by US patents (of all types) issued since 1990:

Rank Inventor U.S. Patents
1 Kia Silverbrook 4,279
2 Shunpei Yamazaki 1,664
3 Donald Weder 1,310
4 Paul Lapstun 1,098
5 Leonard Forbes 959
6 Gurtej Sandhu 728
7 Warren Farnworth 685
8 Salman Akram 653
9 Jay Walker 644
10 Chang-Hwan Hwang 634

This list included only patents granted since 1990, and includes design patents as well as utility patents.

Annual lists (2007–2012)

Strutpatent.com publishes weekly, monthly, and annual lists of the top ten categories, inventors and assignees of US patents since 2007. These lists include all patent types, not just patents for inventions (utility patents).

The top ten inventors of US patents for 2007:[10]

Rank Inventor U.S. Patents
1 Kia Silverbrook 502
2 Audrey Goddard 232
3 William I. Wood 232
4 Austin L. Gurney 225
5 Chang-Hwan Hwang 203
6 Paul J. Godowski 193
7 Shunpei Yamazaki 139
8 Paul Lapstun 129
9 Leonard Forbes 120
10 Victoria Smith 112

The top ten inventors of US patents for 2008:[11]

Rank Inventor U.S. Patents
1 Kia Silverbrook 576
2 Chang-Hwan Hwang 198
3 Audrey Goddard 168
4 Austin L. Gurney 167
5 William I. Wood 166
6 Paul J. Godowski 153
7 Shunpei Yamazaki 143
8 Paul Lapstun 137
9 Chang-Soo Lee 129
10 Victoria Smith 122

The top ten inventors of US patents for 2009:[12]

Rank Inventor U.S. Patents
1 Kia Silverbrook 444
2 Shunpei Yamazaki 137
3 Paul Lapstun 113
4 Bartley K. Andre 92
5 Daniele De Iuliis 92
6 Jonathan Ive 92
7 Matthew Rohrbach 92
8 Richard P. Howarth 91
9 Duncan Robert Kerr 91
10 Leonard Forbes 91

The top ten inventors of US patents for 2010:[13]

Rank Inventor U.S. Patents
1 Kia Silverbrook 709
2 Paul Lapstun 191
3 Shunpei Yamazaki 162
4 Simon Walmsley 115
5 Bartley K. Andre 114
6 Matthew Rohrbach 109
7 Richard P. Howarth 108
8 Jonathan Ive 108
9 Duncan Robert Kerr 108
10 Daniel J. Coster 106

The top ten inventors of US patents for 2011:[14]

Rank Inventor U.S. Patents
1 Kia Silverbrook 754
2 Paul Lapstun 268
3 Shunpei Yamazaki 163
4 Hideo Ando 162
5 You Yoshioka 153
6 Scott H. Wittkopp 126
7 James M. Hart 125
8 Edward Jung 112
9 Simon Walmsley 112
10 Jay S. Walker 99

The top ten inventors of US patents for 2012:[15]

Rank Inventor U.S. Patents
1 Kia Silverbrook 220
2 Edward Jung 180
3 Shunpei Yamazaki 172
4 Lowell Wood 169
5 Roderick Hyde 140
6 Bin Li 124
7 Royce Levien 122
8 Mark Malamud 119
9 Shunpei Yamazaki 118
10 John Rinaldo 117

This table omitted Rick Allen Hamilton II. The USPTO database shows Hamilton was an inventor or co-inventor of 128 US patents granted in 2012,[388] which would place Hamilton at 6th rank for 2012.

Differences between lists

Differences in patent numbers between the various lists are due to several reasons:

  • The lists were created on different dates. As many of the inventors in the lists are still active, the number of patents they hold are increasing.
  • While the U.S. Patent and Trademark Office (USPTO) is the primary source for U.S. patent information, only patents issued since 1976 can be electronically searched by the inventor's name at the USPTO website. For some of the listed inventors, such as Thomas Edison, all of their patents predate 1976, so other sources must be used.
  • Often entities list the worldwide total number of patents that they hold. This is not the same as the number of inventions, as a patent in one country may be for the same invention as a patent in another country. The set of patents covering a single invention in different countries is a Patent family.
  • The Time, USA Today and Portfolio lists show the total number of U.S. patents, including patents for designs (Design patents) as well as patents for inventions (Utility patents).
  • The annual lists from strutpatent.com list only those patents issued in the particular year to the inventor, not all of the inventor's patents.

See also

References

  1. Thomas Alva Edison Biography at Rutgers University
  2. Man-Made Marvels Time Magazine, Dec 4, 2000
  3. List of Edison patents
  4. The Ten Greatest Inventors In The Modern Era Business Insider, 6 May 2011
  5. The True Inventor Basson-Booyens website
  6. US Patents of Shunpei Yamazaki
  7. You really can find identities of top patent holders USA Today, Dec 13, 2005
  8. Masters of invention Portfolio, October 15, 2007
  9. Strutpatent list of the top 10 inventors since 1990
  10. List of the top ten US patent grantees for 2007 StrutPatent.com website
  11. List of the top ten US patent grantees for 2008 StrutPatent.com website
  12. List of the top ten US patent grantees for 2009 StrutPatent.com website
  13. List of the top ten US patent grantees for 2010 StrutPatent.com website
  14. List of the top ten US patent grantees for 2011 StrutPatent.com website
  15. List of the top ten US patent grantees for 2012 StrutPatent.com website
  16. USPTO publication: Prolific Inventors Receiving Utility Patents 1988-1997
  17. US Patents of Kia Silverbrook
  18. Worldwide Patents of Kia Silverbrook
  19. US Patents of Kangguo Cheng
  20. Worldwide Patents of Kangguo Cheng
  21. US Patents of Lowell L. Wood, Jr.
  22. Worldwide Patents of Lowell L. Wood, Jr.
  23. US Patents of Roderick A. Hyde
  24. Worldwide Patents of Roderick A. Hyde
  25. US Patents of Jun Koyama
  26. Worldwide Patents of Jun Koyama
  27. US Patents of Gurtej Sandhu
  28. Worldwide Patents of Gurtej Sandhu
  29. US Patents of Paul Lapstun
  30. Worldwide Patents of Paul Lapstun
  31. US Patents of Clarence T. Tegreene
  32. Worldwide Patents of Clarence T. Tegreene
  33. US Patents of Leonard Forbes
  34. Worldwide Patents of Leonard Forbes
  35. Edison's Foreign Patents
  36. The Complete Thomas Alva Edison U.S. Patent Collection
  37. US Patents of Shou-Shan Fan
  38. Worldwide Patents of Shou-Shan Fan
  39. US Patents of Edward K. Y. Jung
  40. Worldwide Patents of Edward K. Y. Jung
  41. US Patents of Donald E. Weder
  42. Worldwide Patents of Donald E. Weder
  43. Archived Boliven Patents by George Albert Lyon(s)
  44. US Patents of Michael J. Sullivan
  45. Worldwide Patents of Michael J. Sullivan
  46. US Patents of Jay S. Walker
  47. Worldwide Patents of Jay S. Walker
  48. US Patents of Rick Allen Hamilton II
  49. Worldwide Patents of Rick Allen Hamilton II
  50. US Patents of Jordin T. Kare
  51. Worldwide Patents of Jordin T. Kare
  52. US Patents of Nathan Myhrvold
  53. Worldwide Patents of Nathan Myhrvold
  54. US Patents of Ahmadreza Rofougaran
  55. Worldwide Patents of Ahmadreza Rofougaran
  56. US Patents of Mark Malamud
  57. Worldwide Patents of Mark Malamud
  58. US Patents of Robert W. Lord
  59. Worldwide Patents of Robert W. Lord
  60. US Patents of Royce A. Levien
  61. Worldwide Patents of Royce A. Levien
  62. US Patents of Muriel Y. Ishikawa
  63. Worldwide Patents of Muriel Y. Ishikawa
  64. Bio of Muriel Y. Ishikawa
  65. US Patents of William H. Eby
  66. Worldwide Patents of William H. Eby
  67. US Patents of Warren Farnworth
  68. Worldwide Patents of Warren Farnworth
  69. US Patents of Salman Akram
  70. Worldwide Patents of Salman Akram
  71. B. Zorina Khan, The Democratization of Invention: Patents and Copyrights in American Economic Development, 1790-1920 (Cambridge University Press, 2005) pp209-210
  72. US Patents of Jeyhan Karaoguz
  73. Worldwide Patents of Jeyhan Karaoguz
  74. US Patents of Hideo Ando
  75. Worldwide Patents of Hideo Ando
  76. US Patents of George Spector
  77. Worldwide Patents of George Spector
  78. US Patents of Austin L. Gurney
  79. Worldwide Patents of Austin L. Gurney
  80. US Patents of Ali Khakifirooz
  81. Worldwide Patents of Ali Khakifirooz
  82. US Patents of Tetsujiro Kondo
  83. Worldwide Patents of Tetsujiro Kondo
  84. US Patents of Bruce B. Doris
  85. Worldwide Patents of Bruce B. Doris
  86. US Patents of John M. Santosuosso
  87. Worldwide Patents of John M. Santosuosso
  88. US Patents of William I. Wood
  89. Worldwide Patents of William I. Wood
  90. US Patents of Simon R. Walmsley
  91. Worldwide Patents of Simon R. Walmsley
  92. US Patents of Eric C. Leuthardt
  93. Worldwide Patents of Eric C. Leuthardt
  94. US Patents of Clifford A. Pickover
  95. Worldwide Patents of Clifford A. Pickover
  96. US Patents of Audrey D. Goddard
  97. Worldwide Patents of Audrey D. Goddard
  98. US Patents of Edward J. Nowak
  99. Worldwide Patents of Edward J. Nowak
  100. US Patents of Devendra K. Sadana
  101. Worldwide Patents of Devendra K. Sadana
  102. Worldwide Patents of Jerome Lemelson
  103. The Lemelson Center for the Study of Invention & Innovation web site, Jerome Lemelson's Patents.
  104. US Patents of Tadahiro Ohmi
  105. Worldwide Patents of Tadahiro Ohmi
  106. US Patents of Kie Y Ahn
  107. Worldwide Patents of Kie Y Ahn
  108. Worldwide Patents of Béla Barényi
  109. German Patents of Béla Barényi
  110. US Patents of Chih-Chao Yang
  111. Worldwide Patents of Chih-Chao Yang
  112. US Patents of Paul J. Godowski
  113. Worldwide Patents of Paul J. Godowski
  114. US Patents of Artur Fischer
  115. Worldwide Patents of Artur Fischer
  116. Reference to German patents of Artur Fischer
  117. US Patents of Jeffrey P. Gambino
  118. Worldwide Patents of Jeffrey P. Gambino
  119. US Patents of Louis L. Hsu
  120. Worldwide Patents of Louis L. Hsu
  121. US Patents of Victoria Y. H. Wood
  122. Worldwide Patents of Victoria Y. H. Wood
  123. Worldwide Patents of Edwin H. Land
  124. Victor K. McElheny, Insisting on the impossible: The Life of Edwin Land (Perseus Books, 1998)
  125. US Patents of Ruilong Xie
  126. Worldwide Patents of Ruilong Xie
  127. US Patents of Ronald S. Cok
  128. Worldwide Patents of Ronald S. Cok
  129. US Patents of Gregory J. Boss
  130. Worldwide Patents of Gregory J. Boss
  131. Worldwide Patents of Henri Dreyfus
  132. Camille and Henry Dreyfus Foundation
  133. US Patents of Anthony K. Stamper
  134. Worldwide Patents of Anthony K. Stamper
  135. US Patents of Kai-Li Jiang
  136. Worldwide Patents of Kai-Li Jiang
  137. Worldwide Patents of Clyde C. Farmer
  138. Archived Boliven.com website
  139. US Patents of Heinz Focke
  140. Worldwide Patents of Heinz Focke
  141. US Patents of Mark I. Gardner
  142. Worldwide Patents of Mark I. Gardner
  143. US Patents of Ravi K. Arimilli
  144. Worldwide Patents of Ravi K. Arimilli
  145. US Patents of Belgacem Haba
  146. Worldwide Patents of Belgacem Haba
  147. Worldwide Patents of Louis H. Morin
  148. US Patents of Tobin A. King
  149. Worldwide Patents of Tobin A. King
  150. US Patents of Robert S. Langer
  151. Worldwide Patents of Robert S. Langer
  152. US Patents of James M. Hart
  153. Worldwide Patents of James M. Hart
  154. US Patents of Lisa Seacat DeLuca
  155. Worldwide Patents of Lisa Seacat DeLuca
  156. US Patents of Jack A. Mandelman
  157. Worldwide Patents of Jack A. Mandelman
  158. US Patents of Sarbajit K. Rakshit
  159. Worldwide Patents of Sarbajit K. Rakshit
  160. US Patents of Akira Nakazawa
  161. Worldwide Patents of Akira Nakazawa
  162. US Patents of Frederick A. Ware
  163. Worldwide Patents of Frederick A. Ware
  164. US Patents of Eberhard Ammermann
  165. Worldwide Patents of Eberhard Ammermann
  166. Full patent listing for Thomas E. Murray
  167. Thomas E. Murray web site
  168. US Patents of John L. Melanson
  169. Worldwide Patents of John L. Melanson
  170. US Patents of Brian M. O'Connell
  171. Worldwide Patents of Brian M. O'Connell
  172. US Patents of Hongyong Zhang
  173. Worldwide Patents of Hongyong Zhang
  174. US Patents of Scott H. Wittkopp
  175. Worldwide Patents of Scott H. Wittkopp
  176. US Patents of Vincent J. Zimmer
  177. Worldwide Patents of Vincent J. Zimmer
  178. Worldwide Patents of John Hays Hammond, Jr.
  179. The Infography of John Hays Hammond, Jr.
  180. US Patents of Hossein Eslambolchi
  181. Worldwide Patents of Hossein Eslambolchi
  182. US Patents of Brent A. Anderson
  183. Worldwide Patents of Brent A. Anderson
  184. US Patents of Cary L. Bates
  185. Worldwide Patents of Cary L. Bates
  186. Bio of Cary L. Bates
  187. US Patents of Wilhelm Brandes
  188. Worldwide Patents of Wilhelm Brandes
  189. US Patents of Xuemin (Sherman) Chen
  190. Worldwide Patents of Xuemin (Sherman) Chen
  191. US Patents of Xuemin Chen a
  192. US Patents of Xuemin Chen b
  193. US Patents of Xuemin Chen c
  194. US Patents of Pouya Hashemi
  195. Worldwide Patents of Pouya Hashemi
  196. US Patents of Stanford R. Ovshinsky
  197. Worldwide Patents of Stanford R. Ovshinsky
  198. US Patents of Stanford Ovshinsky
  199. US Patents of Lawrence A. Clevenger
  200. Worldwide Patents of Lawrence A. Clevenger
  201. US Patents of Esmael H. Dinan
  202. Worldwide Patents of Esmael H. Dinan
  203. US Patents of Josef Theurer
  204. Worldwide Patents of Josef Theurer
  205. US Patents of David V. Horak
  206. Worldwide Patents of David V. Horak
  207. US Patents of Paul W. Dent
  208. Worldwide Patents of Paul W. Dent
  209. US Patents of Wael W. Diab
  210. Worldwide Patents of Wael W. Diab
  211. US Patents of George P. Liang
  212. Worldwide Patents of George P. Liang
  213. US Patents of Hans-Joachim Santel
  214. Worldwide Patents of Hans-Joachim Santel
  215. US Patents of Gisela Lorenz
  216. Worldwide Patents of Gisela Lorenz
  217. US Patents of Bengt Lindoff
  218. Worldwide Patents of Bengt Lindoff
  219. US Patents of Jeffrey E. Stahmann
  220. Worldwide Patents of Jeffrey E. Stahmann
  221. US Patents of Garry R. Jackson
  222. Worldwide Patents of Garry R. Jackson
  223. US Patents of William Daniel Hillis
  224. Worldwide Patents of William Daniel Hillis
  225. George Westinghouse article at ideafinder.com
  226. Hubert, P. G. (1894). Men of achievement. Inventors. New York: Charles Scribner's Sons. Page 296+
  227. George Westinghouse article in Encyclopædia Britannica
  228. US Patents of Norman M. Berry
  229. Worldwide Patents of Norman M. Berry
  230. US Patents of Valentina Salapura
  231. Worldwide Patents of Valentina Salapura
  232. US Patents of Carl J. Radens
  233. Worldwide Patents of Carl J. Radens
  234. US Patents of Mark W. Kroll
  235. Worldwide Patents of Mark W. Kroll
  236. Bio of Mark Kroll
  237. US Patents of Robert R. Schmidt
  238. Worldwide Patents of Robert R. Schmidt
  239. US Patents of Elizabeth A. Sweeney
  240. Worldwide Patents of Elizabeth A. Sweeney
  241. US Patents of Dean L. Kamen
  242. Worldwide Patents of Dean L. Kamen
  243. US Patents of Ajith K. Kumar
  244. Worldwide Patents of Ajith K. Kumar
  245. US Patents of Michael (S.) Tsirkin
  246. Worldwide Patents of Michael (S.) Tsirkin
  247. US Patents of Hanson S. Gifford III
  248. Worldwide Patents of Hanson S. Gifford III
  249. US Patents of Timothy J. Slegel
  250. Worldwide Patents of Timothy J. Slegel
  251. US Patents of Keith R. Walker
  252. Worldwide Patents of Keith R. Walker
  253. US Patents of Assaf Natanzon
  254. Worldwide Patents of Assaf Natanzon
  255. US Patents of Philip D. Nguyen
  256. Worldwide Patents of Philip D. Nguyen
  257. US Patents of Daniel J. Winarski
  258. Worldwide Patents of Daniel J. Winarski
  259. US Patents of Kulvir S. Bhogal
  260. Worldwide Patents of Kulvir S. Bhogal
  261. US Patents of Liang Liu
  262. Worldwide Patents of Liang Liu
  263. US Patents of Steven L. Teig
  264. Worldwide Patents of Steven L. Teig
  265. US Patents of Frank J. Viola
  266. Worldwide Patents of Frank J. Viola
  267. US Patents of Victor S. Moore
  268. Worldwide Patents of Victor S. Moore
  269. US Patents of Jasinder P. Singh
  270. Worldwide Patents of Jasinder P. Singh
  271. US Patents of Victoria Smith
  272. Worldwide Patents of Victoria Smith
  273. Robert G. LeTourneau: Dean of Earthmoving
  274. Texas Co-op Power: He Was a Mover and a Shaker
  275. US Patents of Ramachandra Divakaruni
  276. Worldwide Patents of Ramachandra Divakaruni
  277. US Patents of James E. Bostick
  278. Worldwide Patents of James E. Bostick
  279. US Patents of William R. Tonti
  280. Worldwide Patents of William R. Tonti
  281. US Patents of Zine-Eddine Boutaghou
  282. Worldwide Patents of Zine-Eddine Boutaghou
  283. US Patents of Cyprian E. Uzoh
  284. Worldwide Patents of Cyprian E. Uzoh
  285. US Patents of Adam Heller
  286. Worldwide Patents of Adam Heller
  287. The 12 US Patents of Adam Heller prior to 1976
  288. US Patents of Jeffrey W. Sleight
  289. Worldwide Patents of Jeffrey W. Sleight
  290. US Patents of Madhusudan K. Iyengar
  291. Worldwide Patents of Madhusudan K. Iyengar
  292. US Patents of Brent Keeth
  293. Worldwide Patents of Brent Keeth
  294. US Patents of Daniel C. Edelstein
  295. Worldwide Patents of Daniel C. Edelstein
  296. US Patents of Dorin Comaniciu
  297. Worldwide Patents of Dorin Comaniciu
  298. US Patents of Michael A. Rothman
  299. Worldwide Patents of Michael A. Rothman
  300. US Patents of John M. Ganci
  301. Worldwide Patents of John M. Ganci
  302. US Patents of Hartley Owen
  303. Worldwide Patents of Hartley Owen
  304. US Patents of Christopher J. Dawson
  305. Worldwide Patents of Christopher J. Dawson
  306. US Patents of Bran Ferren
  307. Worldwide Patents of Bran Ferren
  308. US Patents of Rajiv V. Joshi
  309. Worldwide Patents of Rajiv V. Joshi
  310. US Patents of Andrew J. Ouderkirk
  311. Worldwide Patents of Andrew J. Ouderkirk
  312. US Patents of Takeshi Chujoh
  313. Worldwide Patents of Takeshi Chujoh
  314. US Patents of Yoshihiro Kikuchi
  315. Worldwide Patents of Yoshihiro Kikuchi
  316. US Patents of Sandeep R. Patil
  317. Worldwide Patents of Sandeep R. Patil
  318. US Patents of Craig E. Hampel
  319. Worldwide Patents of Craig E. Hampel
  320. US Patents of Harry (Tom) Graef
  321. Worldwide Patents of Harry (Tom) Graef
  322. US Patents of Imad Libbus
  323. Worldwide Patents of Imad Libbus
  324. US Patents of Zvi Or-Bach
  325. Worldwide Patents of Zvi Or-Bach
  326. US Patents of Michael L. Fripp
  327. Worldwide Patents of Michael L. Fripp
  328. US Patents of Nobuyuki Taniguchi
  329. Worldwide Patents of Nobuyuki Taniguchi
  330. US Patents of Johnny M. Shieh
  331. Worldwide Patents of Johnny M. Shieh
  332. US Patents of Philip S. Yu
  333. Worldwide Patents of Philip S. Yu
  334. US Patents of Louis B. Rosenberg
  335. Worldwide Patents of Louis B. Rosenberg
  336. US Patents of James R. Kraemer
  337. Worldwide Patents of James R. Kraemer
  338. US Patents of Gerald F. McBrearty
  339. Worldwide Patents of Gerald F. McBrearty
  340. US Patents of Seung H. Kang
  341. Worldwide Patents of Seung H. Kang
  342. US Patents of Thomas J. Kennedy III
  343. Worldwide Patents of Thomas J. Kennedy III
  344. US Patents of Mark A. Horowitz
  345. Worldwide Patents of Mark A. Horowitz
  346. US Patents of Stephen G. Perlman
  347. Worldwide Patents of Stephen G. Perlman
  348. US Patents of Dureseti Chidambarrao
  349. Worldwide Patents of Dureseti Chidambarrao
  350. US Patents of Paul Ian Mackey
  351. Worldwide Patents of Paul Ian Mackey
  352. US Patents of James W. Seaman
  353. Worldwide Patents of James W. Seaman
  354. US Patents of Jonathan J. Hull
  355. Worldwide Patents of Jonathan J. Hull
  356. US Patents of Mukta Ghate Farooq
  357. Worldwide Patents of Mukta Ghate Farooq
  358. US Patents of Sebastian T. Ventrone
  359. Worldwide Patents of Sebastian T. Ventrone
  360. US Patents of Rajarshi Gupta
  361. Worldwide Patents of Rajarshi Gupta
  362. US Patents of Gregory McAvoy
  363. Worldwide Patents of Gregory McAvoy
  364. US Patents of Jed H. Rankin
  365. Worldwide Patents of Jed H. Rankin
  366. US Patents of Hiroshi (You) Yoshioka
  367. Worldwide Patents of Hiroshi (You) Yoshioka
  368. US Patents of Patrick B. Usoro
  369. Worldwide Patents of Patrick B. Usoro
  370. US Patents of Benzion Landa
  371. Worldwide Patents of Benzion Landa
  372. US Patents of Vijay Narayanan
  373. Worldwide Patents of Vijay Narayanan
  374. US Patents of Sadeg M. Faris
  375. Worldwide Patents of Sadeg M. Faris
  376. US Patents of Robert E. Fischell
  377. Worldwide Patents of Robert E. Fischell
  378. US Patents of Hui Zang
  379. Worldwide Patents of Hui Zang
  380. US Patents of Ilyas Mohammed
  381. Worldwide Patents of Ilyas Mohammed
  382. Prolific Inventors: Who are They and Where do They Locate? International Centre for Economic Research Working Paper No. 14/2010
  383. List of Nikola Tesla patents
  384. Jim Bieberich's Complete Nikola Tesla U.S. Patent Collection
  385. The Patent Board website
  386. 1790 Analytics website
  387. USPTO Utility Patent Search for Rick Allen Hamilton II for 2012
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