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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Combustion engines

Combustion engines Patent Leaders in 2021 2021

Primary CPC class F02 · Section F

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 3,504 patents in 2019.peak 3,5041996: 1,278 patents19961997: 1,294 patents1998: 1,623 patents1999: 1,588 patents19992000: 1,833 patents2001: 2,148 patents2002: 2,201 patents20022003: 2,266 patents2004: 2,345 patents2005: 2,128 patents20052006: 2,254 patents2007: 1,917 patents2008: 1,769 patents20082009: 1,537 patents2010: 1,983 patents2011: 1,884 patents20112012: 2,141 patents2013: 2,425 patents2014: 2,430 patents20142015: 2,568 patents2016: 2,849 patents2017: 3,158 patents20172018: 3,451 patents2019: 3,504 patents2020: 3,262 patents20202021: 2,935 patents2022: 2,624 patents2023: 2,145 patents20232024: 1,924 patents2025: 1,530 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Aed M. Dudar 34 Ford
2 Atsushi Inoue 20 Mazda Motor
3 Daniel Bernard Kupratis 19 RTX (Raytheon)
#4 Joseph Lyle Thomas 17 Ford
#5 Kota Matsumoto 16 Mazda Motor
#6 Masanari Sueoka 16 Mazda Motor
#7 William G. Sheridan 16 RTX (Raytheon)
#8 Keiji Maruyama 15 Mazda Motor
#9 Takuya Ohura 15 Mazda Motor
#10 Toru Miyamoto 15 Seiko Epson
#11 Chris Paul Glugla 14 Ford
#12 Ross Dykstra Pursifull 14 Ford
#13 Frederick M. Schwarz 13 RTX (Raytheon)
#14 Gabriel L. Suciu 13 RTX (Raytheon)
#15 Tomohiro Nishida 13 Mazda Motor
#16 Brandon Wayne Miller 12 GE
#17 Rani Kiwan 12 Ford
#18 Ricardo Rodriguez-Ramon 12 Bj Energy Solutions
#19 Tony Yeung 12 Bj Energy Solutions
#20 Yusuke Kawai 12 Mazda Motor
#21 Andre Julien 11 RTX (Raytheon)
#22 Tatsuhiro Tokunaga 11 Mazda Motor
#23 Yuki Nose 10 Toyota
#24 Akihiro Katayama 9 Canon
#25 Christopher Paul Glugla 9 Ford
#26 Gary D. Roberge 9 RTX (Raytheon)
#27 Gopichandra Surnilla 9 Ford
#28 Jean Thomassin 9 RTX (Raytheon)
#29 Tomonori Urushihara 9 Mazda Motor
#30 Young Oh 9 Hyundai Motor
#31 Anthony Kyle Perfetto 8 Cummins
#32 Craig W Bemment 8 Rolls-Royce Plc
#33 Dong Hee Han 8 Hyundai Motor
#34 Go Asai 8 Yanmar Power Technology Co.
#35 J. Steven Kolhouse 8 Cummins
#36 John Eric Rollinger 8 Ford
#37 Joseph Norman Ulrey 8 Ford
#38 Masanao Idogawa 8 Toyota
#39 Masayuki Saruwatari 8 Hitachi Automotive Systems
#40 Mamoru Yoshioka 8 Toyota
#41 Ryohei Ono 8 Mazda Motor
#42 Samuel C. Geckler 8 Cummins
#43 Sangkyu Kim 8 LG
#44 Yuji Harada 8 Mazda Motor
#45 Yuto Ikeda 8 Toyota
#46 Amey Y. Karnik 7 Ford
#47 Bruno Villeneuve 7 RTX (Raytheon)
#48 Daniel Alan Niergarth 7 GE
#49 Daisuke Shimo 7 Mazda Motor
#50 Joseph Foster 7 Bj Energy Solutions
#51 Joshua Tyler Mook 7 GE
#52 Louis J. Serrano 7 Tula Etechnology
#53 Mark Spruce 7 Rolls-Royce Plc
#54 Michael Damian Czekala 7 Ford
#55 Ming-Feng Hsieh 7 Cummins
#56 Michiharu Kawano 7 Mazda Motor
#57 Michael E. McCune 7 RTX (Raytheon)
#58 Mohannad Hakeem 7 Ford
#59 Mohammed El Hacin Sennoun 7 GE
#60 Ryo KUSAKABE 7 Hitachi Automotive Systems
#61 Xiaogang Zhang 7 Ford
#62 Yoshiyuki Shogenji 7 Toyota
#63 Yuya Honda 7 Mazda Motor
#64 Yutaka Masuda 7 Kansai Paint Co.
#65 Aigbedion Akwara 6 GE
#66 Andreas Kuske 6 Ford
#67 Brian D. Merry 6 RTX (Raytheon)
#68 Daisaku Asanuma 6 Aisan Kogyo Kabushiki Kaisha
#69 Dennis Seung-Man Yang 6 Ford
#70 Douglas Raymond Martin 6 Ford
#71 Frédéric Ridray 6 Airbus Operations Sas
#72 Gregory James Hampson 6 Woodward
#73 Hirokazu Ando 6 Toyota
#74 Hong Zhang 6 Vitesco Technologies Gmbh
#75 Jason A. Ryon 6 Delavan
#76 Jaswinder Singh 6 Caterpillar
#77 John Erik Mikael Hellstrom 6 Ford
#78 Kazuki SUGIE 6 Toyota
#79 Keita Arai 6 Mazda Motor
#80 Kevin Michael VandeVoorde 6 GE
#81 Lev Alexander Prociw 6 Delavan
#82 Lisa R. Lloyd 6 John Deere
#83 Masashi Inaba 6 Denso
#84 Mark Meinhart 6 Ford
#85 Michael Robert Notarnicola 6 GE
#86 Michael James Uhrich 6 Ford
#87 Naoya OKA 6 Toyota
#88 Paul Hollar 6 Ford
#89 Robert Koenen 6 Briggs & Stratton
#90 Robert J. Kraft 6 Texas Instruments
#91 Seungwoo Hong 6 Hyundai Motor
#92 Steven R. Fliearman 6 John Deere
#93 Takeru Matsuo 6 Mazda Motor
#94 Thomas G. Leone 6 Ford
#95 Xuguang Tan 6 Weichai Power Co.
#96 Yoshihiko Honda 6 Aisan Kogyo Kabushiki Kaisha
#97 Yoshiyuki Umemoto 6 Ihi
#98 Yodai Yamaguchi 6 Mazda Motor
#99 Yuta Oshiro 6 Toyota
#100 Bobby John 5 Caterpillar

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Ford 204
2 RTX (Raytheon) 204
3 Toyota 156
#4 GE 103
#5 Mazda Motor 92
#6 Denso 90
#7 Hyundai Motor 87
#8 Kia Motors 82
#9 Rolls-Royce Plc 79
#10 Caterpillar 76
#11 Honda Motor Co. 75
#12 Cummins 67
#13 Hitachi Automotive Systems 55
#14 Vitesco Technologies Gmbh 46
#15 Robert Bosch Gmbh 44
#16 Safran Aircraft Engines 36
#17 Aisan Kogyo Kabushiki Kaisha 35
#18 General Motors 35
#19 Hamilton Sundstrand 28
#20 Volkswagen 28
#21 Mitsubishi Electric 27
#22 BMW 26
#23 Yanmar Power Technology Co. 25
#24 Delphi Technologies Ip Limited 23
#25 Rolls-Royce North America 23
#26 Transportation Ip Holdings 23
#27 Rohr 22
#28 Walbro 22
#29 Nissan Motor Co. 19
#30 The Boeing 19
#31 Airbus Operations Sas 18
#32 Ihi 18
#33 John Deere 18
#34 Mahle International Gmbh 17
#35 Mitsubishi Power 17
#36 Mtu Friedrichshafen Gmbh 16
#37 Rolls-Royce Deutschland 16
#38 Subaru 16
#39 Borgwarner 15
#40 Mann+Hummel Gmbh 15
#41 Mitsubishi Heavy Industries Engine & Turbocharger 15
#42 Volvo Truck 15
#43 Woodward 15
#44 Briggs & Stratton 14
#45 Tenneco Automotive Operating Company 12
#46 Tula Etechnology 12
#47 Bj Energy Solutions 11
#48 Eaton Intelligent Power Limited 11
#49 Fca Us Llc. 11
#50 Continental Automotive Gmbh 10
#51 Garrett Transportation I 10
#52 Mikuni 10
#53 Weichai Power Co. 10
#54 Avl List Gmbh 9
#55 Innio Jenbacher Gmbh & Co Og 9
#56 Marelli Europe S.P.A. 9
#57 Scania Cv Ab 9
#58 Continental Automotive France 8
#59 Hamanakodenso Co. 8
#60 Isuzu Motors Limited 8
#61 Kohler 8
#62 Unknown 8
#63 Honeywell 8
#64 Daimler Ag 7
#65 Delavan 7
#66 Man Truck &Bus Ag 7
#67 Safran Transmission Systems 7
#68 Saudi Arabian Oil 7
#69 Suzuki Motor 7
#70 Aisin Seiki Kabushiki Kaisha 6
#71 Faurecia Systemes D'Echappement 6
#72 K&N Engineering 6
#73 Man Energy Solutions Se 6
#74 Safran Nacelles 6
#75 Yamaha Motor 6
#76 8 Rivers Capital 5
#77 Aerojet Rocketdyne 5
#78 Arianegroup Sas 5
#79 Bombardier Recreational Products 5
#80 Brunswick 5
#81 Denso International America 5
#82 Dr. Ing. H.C. F. Porsche Ag 5
#83 Hitachi Astemo 5
#84 Hyundai Kefico 5
#85 Ifp Energies Nouvelles 5
#86 Jaguar Land Rover Limited 5
#87 Kia 5
#88 Kobe Steel 5
#89 Kubota 5
#90 Paccar 5
#91 Powerphase International 5
#92 onsemi 5
#93 Arianegroup Gmbh 4
#94 Champion Power Equipment 4
#95 Goodrich 4
#96 Goodrich Actuation Systems Limited 4
#97 Hanon Systems 4
#98 Iwis Motorsysteme 4
#99 Kawasaki 4
#100 King Abdulaziz University 4