Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Engines and machines Patent Leaders in 2020 2020

Primary CPC class F01 · 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 3,340 patents in 2019.peak 3,3401996: 732 patents19961997: 720 patents1998: 950 patents1999: 925 patents19992000: 1,074 patents2001: 1,306 patents2002: 1,314 patents20022003: 1,255 patents2004: 1,172 patents2005: 1,158 patents20052006: 1,283 patents2007: 1,146 patents2008: 1,105 patents20082009: 1,159 patents2010: 1,399 patents2011: 1,562 patents20112012: 2,088 patents2013: 2,075 patents2014: 2,451 patents20142015: 2,399 patents2016: 2,170 patents2017: 2,567 patents20172018: 2,823 patents2019: 3,340 patents2020: 3,328 patents20202021: 2,794 patents2022: 2,594 patents2023: 2,031 patents20232024: 1,817 patents2025: 1,642 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Dominic J. Mongillo 39 RTX (Raytheon)
2 Ted J. Freeman 35 —
3 Tracy A. Propheter-Hinckley 33 RTX (Raytheon)
#4 Brandon W. Spangler 24 RTX (Raytheon)
#5 Carey Clum 24 RTX (Raytheon)
#6 Michael G. McCaffrey 23 RTX (Raytheon)
#7 Daniel K. Vetters 19 —
#8 James E. McCarthy, Jr. 18 Eaton Intelligent Power Limited
#9 David J. Thomas 16 —
#10 Ronald Scott Bunker 16 GE
#11 Hyo Jo Lee 15 Hyundai Motor
#12 Nicholas Joseph Kray 15 GE
#13 Aaron D. Sippel 14 —
#14 Matthew Troy Hafner 14 GE
#15 Christopher W. Strock 13 RTX (Raytheon)
#16 Frederick M. Schwarz 13 RTX (Raytheon)
#17 Matthew A. Devore 13 RTX (Raytheon)
#18 Gabriel L. Suciu 12 RTX (Raytheon)
#19 Jeffrey A. Walston 12 —
#20 Ludovic Pintat 12 Safran Aircraft Engines
#21 Darek Tomasz Zatorski 11 GE
#22 Guillaume Jochen Scholl 11 Safran Aircraft Engines
#23 John McConnell Delvaux 11 GE
#24 Paul M. Lutjen 11 RTX (Raytheon)
#25 Timothy J. Jennings 11 RTX (Raytheon)
#26 William R. Edwards 11 RTX (Raytheon)
#27 Aaron Ezekiel Smith 10 GE
#28 Conway Chuong 10 RTX (Raytheon)
#29 Nitesh Jain 10 GE
#30 Nicholas M. LoRicco 10 RTX (Raytheon)
#31 Thomas E. Clark 10 RTX (Raytheon)
#32 Thomas Michel Julien Mervant 10 Safran Aircraft Engines
#33 Christopher Whitfield 9 RTX (Raytheon)
#34 David Wayne Weber 9 GE
#35 Gregory Terrence Garay 9 GE
#36 John Rohde 9 Faurecia Emissions Control Technologies, Usa
#37 Lucien Henri Jacques Quennehen 9 Safran Aircraft Engines
#38 Michael J. Whittle 9 Rolls-Royce Plc
#39 Renaud Gabriel Constant Royan 9 Safran Aircraft Engines
#40 Rohit Chouhan 9 GE
#41 San Quach 9 RTX (Raytheon)
#42 Sébastien Serge Francis Congratel 9 Safran Aircraft Engines
#43 Steven J. Feigleson 9 RTX (Raytheon)
#44 Steven D. Porter 9 RTX (Raytheon)
#45 Thomas Ory Moniz 9 GE
#46 Victor Hugo Silva Correia 9 —
#47 William G. Sheridan 9 RTX (Raytheon)
#48 Back Sik Kim 8 Hyundai Motor
#49 Brian Barainca 8 RTX (Raytheon)
#50 Bruce E. Varney 8 —
#51 Charles Thistle 8 RTX (Raytheon)
#52 Daniel C. Crites 8 Honeywell
#53 Douglas J. Nielsen 8 Eaton Intelligent Power Limited
#54 Eli Cole Warren 8 RTX (Raytheon)
#55 Glenn Curtis Taxacher 8 GE
#56 Jun Shi 8 —
#57 Ken F. Blaney 8 RTX (Raytheon)
#58 Kyoung Pyo Ha 8 Hyundai Motor
#59 Markus Schlemmer 8 Mtu Aero Engines Ag
#60 Mark F. Zelesky 8 RTX (Raytheon)
#61 Pierre Hervé Fernand Marche 8 Safran Aircraft Engines
#62 Ravindra Shankar Ganiger 8 GE
#63 Raymond Surace 8 RTX (Raytheon)
#64 Richard Schmidt 8 GE
#65 Steven Bruce Gautschi 8 RTX (Raytheon)
#66 Takayuki Sakamoto 8 Sony
#67 You Sang Son 8 Hyundai Motor
#68 Aed M. Dudar 7 Ford
#69 Brian D. Merry 7 RTX (Raytheon)
#70 Charles H. Warner 7 RTX (Raytheon)
#71 Daiji Nagaoka 7 Isuzu Motors Limited
#72 Dale Arden Stretch 7 Eaton
#73 Eugene V. Gonze 7 General Motors
#74 Herbert Chidsey Roberts 7 GE
#75 Jeffrey Donald Clements 7 GE
#76 Justin D. BALTRUCKI 7 Jacobs Vehicle Systems
#77 Katsuhisa Hamada 7 Mitsubishi Hitachi Power Systems
#78 Kenji Bunno 7 Ihi
#79 Markus Brettschneider 7 Mtu Aero Engines Ag
#80 Majo Cecur 7 Eaton Intelligent Power Limited
#81 Neelesh Nandkumar Sarawate 7 GE
#82 Patrick Altherr 7 Mahle International Gmbh
#83 Remy Synnott 7 RTX (Raytheon)
#84 Satoshi Hada 7 Mitsubishi Electric
#85 Scott D. Lewis 7 RTX (Raytheon)
#86 Steven Paul Goodier 7 Castrol Limited
#87 Thomas N. Slavens 7 RTX (Raytheon)
#88 Xuedong Zhou 7 RTX (Raytheon)
#89 Yonggyu Lee 7 Hyundai Motor
#90 Zachary Daniel Webster 7 GE
#91 Adam P. Generale 6 RTX (Raytheon)
#92 Akram Hamed Mohamed Kamel 6 Saudi Arabian Oil
#93 Ardeshir Riahi 6 Honeywell
#94 Brett Barker 6 —
#95 Bret M. Teller 6 RTX (Raytheon)
#96 Chad McCloy 6 Borgwarner
#97 Clement Roussille 6 Snecma
#98 Corey D. Anderson 6 RTX (Raytheon)
#99 Gary Michael Itzel 6 GE
#100 Gary D. Roberge 6 RTX (Raytheon)

Top Companies

Rank ↑ Company ↕ Patents ↕
1 RTX (Raytheon) 595
2 GE 392
3 Rolls-Royce Plc 168
#4 Safran Aircraft Engines 135
#5 Toyota 93
#6 Hyundai Motor 90
#7 Kia Motors 84
#8 Ford 80
#9 Rolls-Royce North America 61
#10 Doosan Heavy Industries & Construction Co. 60
#11 Mtu Aero Engines Ag 50
#12 Mitsubishi Hitachi Power Systems 47
#13 Schaeffler 43
#14 Siemens Aktiengesellschaft 43
#15 Honda Motor Co. 38
#16 General Motors 36
#17 Eaton Intelligent Power Limited 30
#18 Denso 27
#19 Robert Bosch Gmbh 27
#20 Rolls-Royce Deutschland 25
#21 Cummins Emission Solutions 24
#22 Borgwarner 23
#23 Cummins 23
#24 Honeywell 22
#25 Mahle International Gmbh 21
#26 Mazda Motor 21
#27 Faurecia Emissions Control Technologies, Usa 20
#28 Man Energy Solutions Se 20
#29 Caterpillar 20
#30 Scania Cv Ab 19
#31 Volvo Truck 19
#32 Tenneco Automotive Operating Company 18
#33 Continental Automotive Gmbh 17
#34 Mitsubishi Electric 17
#35 Mitsubishi Heavy Industries Compressor 17
#36 Isuzu Motors Limited 16
#37 Ihi 14
#38 Man Truck &Bus Ag 14
#39 Ngk Insulators 14
#40 Aisin Seiki Kabushiki Kaisha 13
#41 Nuovo Pignone Srl 13
#42 Ansaldo Energia Switzerland Ag 12
#43 Eberspächer Exhaust Technology Gmbh 12
#44 Mitsubishi Heavy Industries Engine & Turbocharger 12
#45 Rolls-Royce High Temperature Composites 12
#46 Kubota 11
#47 BMW 10
#48 Eco Holding 1 Gmbh 10
#49 Toshiba Energy Systems & Solutions 10
#50 Volkswagen 10
#51 Daimler Ag 9
#52 Delphi Technologies Ip Limited 9
#53 Garrett Transportation I 9
#54 Hitachi Automotive Systems 9
#55 Saudi Arabian Oil 9
#56 Vitesco Technologies Gmbh 9
#57 Castrol Limited 8
#58 Hamilton Sundstrand 8
#59 Jacobs Vehicle Systems 8
#60 Kabushiki Kaisha Toshiba 8
#61 Kawasaki 8
#62 Thyssenkrupp Presta Teccenter Ag 8
#63 Watlow Electric Manufacturing 8
#64 Denso International America 7
#65 Faurecia Systemes D'Echappement 7
#66 Kobe Steel 7
#67 Nissan Motor Co. 7
#68 Advanced Technology Emission Solutions 6
#69 Audi Ag 6
#70 Eaton 6
#71 Florida Turbine Technologies 6
#72 Nuovo Pignone Tecnologie S.R.L. 6
#73 Suzuki Motor 6
#74 The Boeing 6
#75 Umicore Ag & Co. Kg 6
#76 Unknown 6
#77 Yanmar Holdings Co. 6
#78 John Deere 6
#79 Cnh Industrial America 5
#80 Cummins Filtration Ip 5
#81 Dr. Ing. H.C. F. Porsche Ag 5
#82 Ebm-Papst St. Georgen 5
#83 Fujitsu Limited 5
#84 Futaba Industrial Co. 5
#85 Hanon Systems 5
#86 Illinois Tool Works 5
#87 Mann+Hummel Gmbh 5
#88 Safran Aero Boosters 5
#89 Safran Ceramics 5
#90 Snecma 5
#91 Solar Turbines Incorporated 5
#92 Chugoku Electric Power Co. 5
#93 Thyssenkrupp Ag 5
#94 Tokyo Metropolitan University 5
#95 Yanmar Power Technology Co. 5
#96 LG 5
#97 Panasonic 5
#98 Avl List Gmbh 4
#99 Chromalloy Gas Turbine 4
#100 Dresser-Rand 4