Combustion equipment Patent Leaders

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: 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Patents per Year

Top Inventors

Rank ↑	Inventor ↕	Patents ↕	Primary Company ↕
1	Pradeep Naik	113	GE
2	Michael A. Benjamin	87	GE
3	Christopher A. Wiklof	84	Clearsign Combustion
#4	Lev Alexander Prociw	83	Delavan
#5	Gregory Allen Boardman	82	GE
#6	Thomas Edward Johnson	82	GE
#7	Patrick Benedict Melton	79	GE
#8	Jonathan Dwight Berry	74	GE
#9	Jack R. Shekleton	66	Sundstrand
#10	JOSEPH COLANNINO	64	Clearsign Combustion
#11	Jason A. Ryon	63	Delavan
#12	Perumallu Vukanti	61	GE
#13	Timothy S. Snyder	61	RTX (Raytheon)
#14	Adnan Eroglu	60	Alstom Technology
#15	Lucas John Stoia	60	GE
#16	Steven C. Vise	53	GE
#17	Didier Hippolyte Hernandez	50	Snecma
#18	Clayton Stuart Cooper	48	GE
#19	Willy Steve Ziminsky	46	GE
#20	Denis Jean Maurice Sandelis	45	Snecma
#21	Frank J. Cunha	45	RTX (Raytheon)
#22	Hiranya Nath	44	GE
#23	James B. Hoke	43	RTX (Raytheon)
#24	Michael John Hughes	43	GE
#25	Narendra Digamber Joshi	42	GE
#26	DOUGLAS W. KARKOW	40	Clearsign Combustion
#27	Igor A. Krichtafovitch	40	Clearsign Combustion
#28	Shigemi Mandai	40	Mitsubishi Electric
#29	Gilbert Otto Kraemer	39	GE
#30	Johannes Martin	39	Martin Gmbh Für Umwelt- Und Energietechik
#31	Peter Stuttaford	39	Power Systems Mfg.
#32	Ajoy Patra	38	GE
#33	Jakob Keller	38	Asea Brown Boveri, S.A.
#34	Saket Singh	38	GE
#35	Geoffrey David Myers	37	GE
#36	Satoshi Tanimura	36	Mitsubishi Electric
#37	Hisashi Kobayashi	35	Praxair Technology
#38	Katsunori Tanaka	35	Mitsubishi Electric
#39	Shinji Akamatsu	35	Mitsubishi Electric
#40	Hans Peter Knopfel	34	Abb Research
#41	Paul Bryan Cadima	34	Haier Us Appliance Solutions
#42	Ravindra Shankar Ganiger	34	GE
#43	Romain Nicolas Lunel	34	Snecma
#44	Lewis Berkley Davis, Jr.	33	GE
#45	Christian Oliver Paschereit	32	Alstom Technology
#46	Hiroshi Inoue	32	Canon
#47	Hirofumi Okazaki	32	Hitachi
#48	Klaus Dobbeling	32	Abb Research
#49	Stephen K. Kramer	32	RTX (Raytheon)
#50	Urs Benz	32	Alstom Technology
#51	Wei-Long Chen	32	Pro-Iroda Industries
#52	Karthikeyan Sampath	31	GE
#53	Kwanwoo Kim	31	GE
#54	Manampathy G. Giridharan	31	GE
#55	Michel A. A. Desaulty	31	Societe Nationale D'Etude Et De Construction De Moteurs D'Aviation - S.N.E.C.M.A
#56	Robert E. Schwartz	31	John Zink Company
#57	Stephen John Howell	31	GE
#58	Anthony John Dean	30	GE
#59	Curtis L. Taylor	30	Honeywell
#60	David Deng	30	Continental Appliances
#61	Keijiro Saito	30	Mitsubishi Electric
#62	Michael T. Bucaro	30	GE
#63	Stanislav Kostka	30	RTX (Raytheon)
#64	Hukam Chand Mongia	29	GE
#65	Masayuki Taniguchi	29	Hitachi
#66	Aleksandar Georgi Slavejkov	28	Air Products And Chemicals
#67	Anthony Pidcock	28	Rolls-Royce Plc
#68	Douglas C. Comrie	28	Nox Ii
#69	Hironobu Kobayashi	28	Hitachi
#70	Mahendra Joshi	28	American Air Liquide
#71	Mark J. Khinkis	28	Institute Of Gas Technology
#72	Satoshi Takiguchi	28	Mitsubishi Electric
#73	Shai Birmaher	28	GE
#74	Timothy Griffin	28	Alstom Technology
#75	William David York	28	GE
#76	Zhongtao Dai	28	RTX (Raytheon)
#77	Benjamin Paul Lacy	27	GE
#78	Chin-Lin Tsai	27	Roburn Company
#79	Mark Daniel D'Agostini	27	Air Products And Chemicals
#80	Michio Kuroda	27	Hitachi
#81	Richard Martin DiCintio	27	GE
#82	Rimple Rangrej	27	GE
#83	Ronald James Chila	27	GE
#84	Stanley Kevin Widener	27	GE
#85	Thomas Sattelmayer	27	Abb Research
#86	Baifang Zuo	26	GE
#87	Dennis M. Moura	26	RTX (Raytheon)
#88	Miklos Gerendas	26	Rolls-Royce Deutschland
#89	Richard Carroni	26	Alstom Technology
#90	Steven W. Burd	26	RTX (Raytheon)
#91	Bernard P. Breen	25	Consolidated Natural Gas Service Company
#92	Bruno Schuermans	25	Alstom Technology
#93	Jay R. Katchka	25	Robertshaw Controls
#94	James M. McDonough	25	Societe Bic
#95	Jason Thurman Stewart	25	GE
#96	Joel Vatsky	25	Foster Wheeler Energy Limited
#97	Koichi Nishida	25	Mitsubishi Electric
#98	Patrice Andre Commaret	25	Snecma
#99	Remi Tsiava	25	L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
#100	Thomas Ruck	25	Abb Research

Top Companies

Rank ↑	Company ↕	Patents ↕
1	GE	1,739
2	RTX (Raytheon)	846
3	Honeywell	368
#4	Rolls-Royce Plc	316
#5	Siemens Aktiengesellschaft	258
#6	Alstom Technology	222
#7	Mitsubishi Electric	201
#8	Unknown	180
#9	Hitachi	162
#10	Combustion Engineering	132
#11	Robertshaw Controls	124
#12	Snecma	109
#13	Siemens Energy	104
#14	The Babcock & Wilcox	101
#15	Delavan	95
#16	Westinghouse Electric	95
#17	John Zink Company	91
#18	Mitsubishi Hitachi Power Systems	89
#19	Carrier	87
#20	Air Products And Chemicals	86
#21	L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude	84
#22	Rolls-Royce Deutschland	84
#23	Foster Wheeler Energy Limited	82
#24	Praxair Technology	78
#25	Emerson Electric	77
#26	Rinnai	77
#27	Solar Turbines Incorporated	75
#28	Societe Nationale D'Etude Et De Construction De Moteurs D'Aviation - S.N.E.C.M.A	74
#29	Sundstrand	72
#30	Sumitomo Electric Industries	71
#31	Clearsign Combustion	70
#32	Gas Research Institute	69
#33	Ngk Spark Plug Co.	67
#34	Asea Brown Boveri, S.A.	65
#35	Ansaldo Energia Switzerland Ag	64
#36	Kawasaki	63
#37	ExxonMobil	63
#38	Societe Bic	61
#39	Tokai	61
#40	Rheem Manufacturing	60
#41	Abb Research	58
#42	US Air Force	55
#43	Ihi	48
#44	Safran Aircraft Engines	48
#45	Babcock-Hitachi	47
#46	General Motors	47
#47	Ebara	44
#48	Shell Oil Compny	43
#49	Siemens Westinghouse Power	42
#50	Doosan Enerbility Co.	41
#51	Martin Gmbh Für Umwelt- Und Energietechik	40
#52	Noritz	40
#53	Pro-Iroda Industries	40
#54	Robert Bosch Gmbh	40
#55	Parker-Hannifin	39
#56	Power Systems Mfg.	39
#57	American Air Liquide	38
#58	Rolls-Royce North America	38
#59	Siemens Energy Global	37
#60	Phillips Petroleum	34
#61	Haier Us Appliance Solutions	33
#62	Lennox Industries	33
#63	Smc	33
#64	LG	33
#65	US Dept of Energy	31
#66	Collins Engine Nozzles	30
#67	Kabushiki Kaisha Toshiba	30
#68	Kyungdong Navien Co.	30
#69	Toyota	30
#70	J. Eberspaecher	29
#71	Paloma Kogyo Kabushiki Kaisha	28
#72	Toyotomi Kogyo Co.	28
#73	Alstom (Switzerland)	27
#74	Institute Of Gas Technology	27
#75	Whirlpool	27
#76	Clearsign Technologies	26
#77	Maxon	26
#78	Nox Ii	26
#79	Precision Combustion	26
#80	The Boc Group Limited	26
#81	Coen Company	25
#82	Doosan Heavy Industries & Construction Co.	25
#83	Gas Technology Institute	25
#84	Lamplight Farms Incorporated	25
#85	Mitsubishi Mining	25
#86	Chevron	25
#87	A. Ahlstrom	24
#88	Jidosha Kiki Co.	24
#89	L & C Steinmuller Gmbh	24
#90	The Boeing	24
#91	Caterpillar	24
#92	Mitsubishi Power	23
#93	Osaka Gas Co.	23
#94	Abb Management Ag	22
#95	Grand Mate Co.	22
#96	Bsh Hausgeräte Gmbh	21
#97	Saudi Arabian Oil	21
#98	Union Carbide	21
#99	Beru Aktiengesellschaft	20
#100	British Gas Plc	20

Combustion equipment Patent Leaders All Time

Patents per Year

Top Inventors

Top Companies