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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Control systems

Control systems Patent Leaders All Time

Primary CPC class G05 · Section G

Rankings count each patent once by its primary Cooperative Patent Classification. All-time pages aggregate the full database; year pages use patent grant year.

Recent years: 2016201720182019202020212022202320242025

Patents per Year

Patents granted per year, 1996 to 2025Bar chart with a peak of 3,447 patents in 2019.peak 3,4471996: 765 patents19961997: 747 patents1998: 965 patents1999: 1,008 patents19992000: 961 patents2001: 1,042 patents2002: 1,064 patents20022003: 1,162 patents2004: 1,204 patents2005: 1,096 patents20052006: 1,432 patents2007: 1,150 patents2008: 1,003 patents20082009: 1,107 patents2010: 1,362 patents2011: 1,382 patents20112012: 1,431 patents2013: 1,641 patents2014: 1,743 patents20142015: 1,864 patents2016: 1,987 patents2017: 2,322 patents20172018: 2,669 patents2019: 3,447 patents2020: 3,327 patents20202021: 3,043 patents2022: 3,219 patents2023: 3,183 patents20232024: 2,961 patents2025: 2,979 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Mark J. Nixon 182 Fisher-Rosemount Systems
2 Charles Howard Cella 177 Strong Force Iot Portfolio 2016
3 Gerald William Duffy, Jr. 163 Strong Force Iot Portfolio 2016
#4 Jeffrey P. McGuckin 163 Strong Force Iot Portfolio 2016
#5 Mehul Desai 115 Strong Force Iot Portfolio 2016
#6 Gary K. Law 92 Fisher-Rosemount Systems
#7 Masaki Seki 90 Fanuc
#8 Joseph W. Forbes, Jr. 89 Causam Energy
#9 David I. Ferguson 84 Google
#10 Kenwood H. Hall 78 Rockwell Automation
#11 Michael J. Wenzel 76 Johnson Controls Technology
#12 Terrence L. Blevins 76 Fisher-Rosemount Systems
#13 Ali Ebrahimi Afrouzi 75 Ai Incorporated
#14 Tadashi Okita 73 Fanuc
#15 Satoshi Ikai 71 Fanuc
#16 Zehua SHAO 71 Chengdu Qinchuan Iot Technology Co.
#17 Yasusuke Iwashita 68 Fanuc
#18 Andrew R. Stump 65 Rockwell Automation
#19 Christopher W. Como 58 Rockwell Automation
#20 Sarbajit K. Rakshit 57 IBM
#21 Takashi Takegahara 57 Fanuc
#22 Charles M. Rischar 56 Rockwell Automation
#23 David A. Vasko 56 Rockwell Automation
#24 Kirk H. Drees 56 Johnson Controls Technology
#25 Wilhelm K. Wojsznis 55 Fisher-Rosemount Systems
#26 Michael D. Kalan 54 Rockwell Automation
#27 Nathaniel Fairfield 54 Google
#28 Nobukazu Ikeda 54 Fujikin Incorporated
#29 Hideaki Kawamura 53 Daikyo Seiko
#30 Kouji Nishino 53 Fujikin Incorporated
#31 Jiajun Zhu 52 Google
#32 Kentaro Fujibayashi 52 Fanuc
#33 Anthony Carrara 51 Rockwell Automation
#34 Bijan Sayyarrodsari 51 Rockwell Automation
#35 Douglas J. Reichard 50 Rockwell Automation
#36 Toshiaki Otsuki 49 Fanuc
#37 Yuji Yasui 48 Honda Motor Co.
#38 Larry O. Jundt 47 Fisher-Rosemount Systems
#39 Matthew R. Ericsson 47 Rockwell Automation
#40 Subbian Govindaraj 47 Rockwell Automation
#41 John J. Baier 46 Rockwell Automation
#42 Anthony M. Fadell 45 Google
#43 Hajimu Kishi 44 Fanuc
#44 Naoto Sonoda 44 Fanuc
#45 Noel W. Anderson 44 John Deere
#46 Junichi Tezuka 43 Fanuc
#47 Kadir Liano 43 Rockwell Automation
#48 Taryl J. Jasper 43 Rockwell Automation
#49 Kunio Tanaka 42 Fanuc
#50 Takao Sasaki 42 Fanuc
#51 Yong LI 42 Chengdu Qinchuan Iot Technology Co.
#52 Anthony Amaro, Jr. 41 Fisher-Rosemount Systems
#53 Eun Sik Kim 41 Hyundai Motor
#54 Abraham Galton Bachrach 40 Skydio
#55 Adam Parker Bry 40 Skydio
#56 Godfrey R. Sherriff 40 Fisher-Rosemount Systems
#57 Matthew Donahoe 40 Skydio
#58 Yaqiang QUAN 39 Chengdu Qinchuan Iot Technology Co.
#59 Ambreesh Bhattad 38 Dialog Semiconductor (Uk) Limited
#60 Eashwer Srinivasan 38 Rockwell Automation
#61 Joshua Seth Herbach 38 Google
#62 Jun Fujita 38 Toshiba Kikai
#63 Mitsuo Kurakake 38 Fanuc
#64 Robert D. Turney 38 Johnson Controls Technology
#65 Stephen Piche 38 Pavilion Technologies
#66 Sujeet Chand 38 Rockwell Automation
#67 Youngchoon Park 38 Johnson Controls Technology
#68 Youjun Xiong 38 Ubtech Robotics Corp
#69 Matthew Lee Rogers 37 Google
#70 Michael G. Ott 37 Fisher-Rosemount Systems
#71 Sharon M. Billi-Duran 37 Rockwell Automation
#72 David Sloo 36 Google
#73 Evren Eryurek 36 Rosemount
#74 Joseph L. Jones 36 Irobot
#75 Mohammad N. Elbsat 36 Johnson Controls Tyco Ip Holdings Llp
#76 Adam Wilson 35 Misty Robotics
#77 David C. Mazur 35 Rockwell Automation
#78 Daniel Keith Van Ostrand 35 Sigmasense, Llc.
#79 Gerald Dale Morrison 35 Sigmasense, Llc.
#80 Kenji Iriguchi 35 Mitsubishi Electric
#81 Richard Stuart Seger, JR. 35 Sigmasense, Llc.
#82 Ryousuke Dohi 35 Fujikin Incorporated
#83 Wael William Diab 35 Broadcom
#84 Benjamin Lutz 34 Siemens Aktiengesellschaft
#85 Brian Douglas Cullinane 34 Google
#86 Fan Zhu 34 Baidu Usa
#87 John M. Caldwell 34 Fisher-Rosemount Systems
#88 Robert B. Havekost 34 Fisher-Rosemount Systems
#89 Srdjan Josipovic 34 Rockwell Automation
#90 Stefan Marinca 34 Analog Devices
#91 Kenneth S. Plache 33 Rockwell Automation
#92 Liu Liu 33 Ntt Docomo
#93 Angela S. Bassa 32 Enel X North America
#94 David Garrett 32 Broadcom
#95 David Lundgren 32 Broadcom
#96 Haitang XIANG 32 Chengdu Qinchuan Iot Technology Co.
#97 Husain Al-Mohssen 32 Enel X North America
#98 Jeyhan Karaoguz 32 Broadcom
#99 Jiangtao Hu 32 Baidu Usa
#100 Patrick Troy Gray 32 Sigmasense, Llc.

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Fanuc 1,716
2 Siemens Aktiengesellschaft 1,291
3 Honeywell 1,132
#4 Mitsubishi Electric 1,016
#5 Rockwell Automation 985
#6 IBM 881
#7 GE 806
#8 Samsung 701
#9 The Boeing 645
#10 Toyota 633
#11 Texas Instruments 570
#12 Hitachi 560
#13 Kabushiki Kaisha Toshiba 528
#14 Fisher-Rosemount Systems 484
#15 Intel 465
#16 Google 461
#17 Honda Motor Co. 454
#18 Robert Bosch Gmbh 427
#19 Omron 423
#20 TSMC 336
#21 General Motors 334
#22 Ford 318
#23 Panasonic 307
#24 Unknown 304
#25 Fujitsu Limited 289
#26 Caterpillar 284
#27 AMD 274
#28 Sony 273
#29 RTX (Raytheon) 271
#30 Stmicroelectronics Sa 270
#31 Nec 266
#32 LG 266
#33 Applied Materials 254
#34 Amazon 250
#35 National Semiconductor 244
#36 Johnson Controls Technology 222
#37 Motorola 217
#38 Hyundai Motor 214
#39 Yokogawa Electric 209
#40 Tokyo Electron Limited 208
#41 Canon 207
#42 Qualcomm 204
#43 Denso 200
#44 John Deere 190
#45 Infineon Technologies Ag 188
#46 Micron 180
#47 HP 175
#48 Sumitomo Electric Industries 175
#49 Abb Schweiz Ag 170
#50 Sk Hynix 166
#51 Strong Force Iot Portfolio 2016 162
#52 Analog Devices 159
#53 Irobot 150
#54 Sz Dji Technology Co. 150
#55 Yaskawa Electric 149
#56 Ricoh Company 148
#57 Disney 146
#58 US Air Force 142
#59 Rohm Co. 131
#60 Fisher Controls International 130
#61 Johnson Controls Tyco Ip Holdings Llp 129
#62 Airbus Operations Sas 126
#63 Okuma 123
#64 Nissan Motor Co. 120
#65 Apple 119
#66 ITRI 115
#67 Mitsubishi Electric 114
#68 Freeescale Semiconductor 110
#69 Toshiba Kikai 109
#70 U.S. Philips 109
#71 Foxconn 107
#72 Allen-Bradley Company 104
#73 Abb Technology Ag 103
#74 Rosemount 103
#75 Zoox 101
#76 Westinghouse Electric 99
#77 Carrier 98
#78 Sharp Kabushiki Kaisha 98
#79 Seiko Instruments 96
#80 Kia Motors 95
#81 Uatc 94
#82 AT&T 93
#83 Lockheed Martin 93
#84 Microsoft 92
#85 Abb Research 91
#86 Siemens Industry 91
#87 Baidu Usa 90
#88 Dell Products 90
#89 Renesas Electronics 90
#90 onsemi 90
#91 KAIST 86
#92 State Farm 86
#93 Emerson Electric 85
#94 Nxp B.V. 85
#95 Toyoda Koki Kabushiki Kaisha 84
#96 Cypress Semiconductor 83
#97 Eaton 83
#98 Seiko Epson 83
#99 Komatsu 82
#100 Sikorsky Aircraft 80