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

Control systems Patent Leaders in 2018 2018

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 Hideaki Maeda 8 Fanuc
2 Charles M. Rischar 7 Rockwell Automation
3 David A. Vasko 7 Rockwell Automation
#4 Mark J. Nixon 7 Fisher-Rosemount Systems
#5 Ambreesh Bhattad 6 Dialog Semiconductor (Uk) Limited
#6 Angela S. Bassa 6 Enel X North America
#7 Bradley A. Prosak 6 Rockwell Automation Germany Gmbh & Co. Kg
#8 David I. Ferguson 6 Google
#9 Douglas J. Reichard 6 Rockwell Automation
#10 Frank Kronmueller 6 Dialog Semiconductor (Uk) Limited
#11 Husain Al-Mohssen 6 Enel X North America
#12 Kotaro Nagaoka 6 Mitsubishi Electric
#13 Matthew R. Ericsson 6 Rockwell Automation
#14 Nathaniel Fairfield 6 Google
#15 Richard R. Paradis 6 Enel X North America
#16 Satoshi Ikai 6 Fanuc
#17 Sarbajit K. Rakshit 6 IBM
#18 Yuuki Morita 6 Fanuc
#19 Christopher A. Foster 5 Cnh Industrial America
#20 Daniel John Morwood 5 Autonomous Solutions
#21 Guang Yang 5 Nuctech Company Limited
#22 Guyue Zhou 5 Sz Dji Technology Co.
#23 Jessica L. Korpela 5 Rockwell Automation
#24 Jean-Paul Labrosse 5 Steelcase
#25 Joseph A. Harkulich 5 Rockwell Automation
#26 Martin G. Keen 5 IBM
#27 Michael Xinjie Chu 5 Steelcase
#28 Naiqi Wu 5 Macau University Of Science And Technology
#29 Robert D. Turney 5 Johnson Controls Technology
#30 Rudolf Papenbreer 5 Rockwell Automation Germany Gmbh & Co. Kg
#31 Scott Sullivan 5 Steelcase
#32 Stefano Di Cairano 5 Mitsubishi Electric
#33 Subbian Govindaraj 5 Rockwell Automation
#34 Terrence L. Blevins 5 Fisher-Rosemount Systems
#35 Thomas Helpenstein 5 Rockwell Automation Germany Gmbh & Co. Kg
#36 Yasushi Takeuchi 5 Canon
#37 Akira Kanemaru 4 Fanuc
#38 Anthony M. Fadell 4 Google
#39 Andrew Wilber 4 Rockwell Automation
#40 Atsushi Sakai 4 Showa Denko K.K.
#41 Axel H. Henning 4 Omax
#42 Bo Zhang 4 Huawei
#43 Brian Douglas Cullinane 4 Google
#44 Bret Todd Turpin 4 Autonomous Solutions
#45 David W. Farchmin 4 Rockwell Automation
#46 Fan Zhu 4 Baidu Usa
#47 Fred C. Horton 4 Xslent Energy Technologies
#48 Frank P. Marrone 4 Xslent Energy Technologies
#49 Hongbo Sun 4 Mitsubishi Electric
#50 James M. O'Connor 4 AMD
#51 Jeffrey P. Mathews 4 Google
#52 Jimi R. Michalscheck 4 Rockwell Automation
#53 Jingao Wang 4 Baidu Usa
#54 Jiajun Zhu 4 Google
#55 Joseph W. Forbes, Jr. 4 Causam Energy
#56 John J. Jauquet 4 Rockwell Automation
#57 Jorjeta Gueorguieva Jetcheva 4 Firetide
#58 Juan L. Asenjo 4 Rockwell Automation
#59 Junqing Wei 4 Motional Ad
#60 Kazuo Sato 4 Hitachi
#61 Kelly A. Michalscheck 4 Rockwell Automation
#62 Koji Yaoita 4 Omron
#63 Kyle K. Reissner 4 Rockwell Automation
#64 Masato Tanaka 4 Canon
#65 Mengchu Zhou 4 Macau University Of Science And Technology
#66 Mitsuhiro Ryuman 4 Komatsu
#67 Michael J. Wenzel 4 Johnson Controls Technology
#68 Oliver Heckel 4 Rockwell Automation Germany Gmbh & Co. Kg
#69 Ondrej Holub 4 Honeywell
#70 Philip Nemec 4 Google
#71 Qi Kong 4 Baidu Usa
#72 Raffaello D'Andrea 4 Amazon
#73 Rainer Hessmer 4 Rockwell Automation
#74 Rajat Mittal 4 Qualcomm
#75 Randy C. Willig 4 Enernoc
#76 Robert Parker Clark 4 Kespry
#77 Stefan Matan 4 Xslent Energy Technologies
#78 Sujeet Chand 4 Rockwell Automation
#79 Tadashi Okita 4 Fanuc
#80 Tong Zhang 4 Hangzhou Zero Zero Technology Co.
#81 Wenda Xu 4 Motional Ad
#82 Yasunori Masumiya 4 Makino Milling Machine Co.
#83 Yan Qiao 4 Macau University Of Science And Technology
#84 Yoky Matsuoka 4 Google
#85 Yoshito Miyazaki 4 Fanuc
#86 Zhuo Wang 4 University Of Electronic Science And Technology Of China
#87 Adam Wilson 3 Misty Robotics
#88 Akihiro Shimizu 3 Canon
#89 Amy E. Miller 3 Lutron Electronics Co.
#90 Amnon Shashua 3 Intel
#91 Anne Kristiina Aula 3 Google
#92 Andrew Stubbs 3 Amazon
#93 Anthony Williams 3 The Boeing
#94 Bin Wang 3 Huawei
#95 Brian R. Ray 3 Cnh Industrial America
#96 Bradley Templeton 3 Google
#97 Cam Christiansen 3 Loveland Innovations
#98 Christopher L. Carpenter 3 Whirlpool
#99 Clifford A. Pickover 3 IBM
#100 Dan Christiansen 3 Loveland Innovations

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Fanuc 119
2 IBM 54
3 Rockwell Automation 49
#4 Mitsubishi Electric 48
#5 Honeywell 47
#6 The Boeing 39
#7 Google 39
#8 Samsung 36
#9 Siemens Aktiengesellschaft 33
#10 GE 32
#11 Toyota 29
#12 Qualcomm 27
#13 Intel 24
#14 Robert Bosch Gmbh 23
#15 Amazon 21
#16 Panasonic 21
#17 Omron 20
#18 General Motors 20
#19 Honda Motor Co. 18
#20 Kabushiki Kaisha Toshiba 18
#21 Caterpillar 17
#22 TSMC 16
#23 Fisher-Rosemount Systems 15
#24 Sk Hynix 15
#25 Apple 14
#26 Applied Materials 13
#27 Infineon Technologies Ag 13
#28 Lsis Co. 13
#29 Makino Milling Machine Co. 13
#30 LG 13
#31 Fujitsu Limited 12
#32 Ford 12
#33 Dialog Semiconductor (Uk) Limited 11
#34 Hitachi 11
#35 Lutron Electronics Co. 11
#36 Yokogawa Electric 11
#37 Texas Instruments 11
#38 Azbil 10
#39 Mitsubishi Electric 10
#40 Nec 10
#41 Sz Dji Technology Co. 10
#42 Tokyo Electron Limited 10
#43 X Development 10
#44 Abb Schweiz Ag 9
#45 Cnh Industrial America 9
#46 Hyundai Motor 9
#47 Irobot 9
#48 Johnson Controls Technology 9
#49 Nxp Usa 9
#50 Philips Lighting Holding B.V. 9
#51 Renesas Electronics 9
#52 Rohm Co. 9
#53 Uber Technologies 9
#54 Disney 9
#55 Micron 9
#56 Airbus Operations Sas 8
#57 Enernoc 8
#58 Jtekt 8
#59 Komatsu 8
#60 Sikorsky Aircraft 8
#61 Stmicroelectronics Sa 8
#62 US Air Force 8
#63 John Deere 8
#64 Sony 8
#65 Bae Systems Plc 7
#66 Dell Products 7
#67 Delphi Technologies 7
#68 Denso 7
#69 Foxconn 7
#70 Kyocera 7
#71 Unknown 7
#72 RTX (Raytheon) 7
#73 AT&T 6
#74 Ablic 6
#75 Autonomous Solutions 6
#76 Dspace Digital Signal Processing And Control Engineering Gmbh 6
#77 Emerson Electric 6
#78 Kitty Hawk 6
#79 Okuma 6
#80 Schlumberger Technology 6
#81 Schneider Electric Usa 6
#82 Sii Semiconductor 6
#83 Toshiba Memory 6
#84 Accenture Global Services Limited 5
#85 Autodesk 5
#86 Baidu Usa 5
#87 Brunswick 5
#88 Halliburton Energy Services 5
#89 ITRI 5
#90 Yaskawa Electric 5
#91 Macau University Of Science And Technology 5
#92 Northrop Grumman 5
#93 Ricoh Company 5
#94 Rockwell Automation Asia Pacific Business Center Pte. 5
#95 Seiko Epson 5
#96 Siemens Industry 5
#97 State Farm 5
#98 Steelcase 5
#99 Trane International 5
#100 University Of Electronic Science And Technology Of China 5