Fluid systems and actuators Patent Leaders 2021

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	Michael Berne Rannow	6	Eaton Intelligent Power Limited
2	Tatsuhiro Arikawa	6	Eagle Industry Co.
3	Meng Wang	5	Eaton Intelligent Power Limited
#4	Sascha Alexander Biwersi	5	Hydac Systems & Services Gmbh
#5	Akihiro Kondo	4	Kawasaki
#6	Bernd Zähe	4	Sun Hydraulics
#7	Casey Glick	4	Meta
#8	Jorgen Mads Clausen	4	Pistonpower Aps
#9	Kazutaka Someya	4	Smc
#10	Tom Tychsen	4	Pistonpower Aps
#11	Yuji Fukuda	4	Kubota
#12	Andrew Arthur Stanley	3	Meta
#13	Avijit Ghosh	3	Vortex Pipe Systems
#14	Erik Samuel Roby	3	Meta
#15	Herbert Baltes	3	Hydac Technology Gmbh
#16	Hiroyuki Asahara	3	Smc
#17	Juraj Hanusovsky	3	Pistonpower Aps
#18	Kamran Eftekhari Shahroudi	3	Woodward
#19	Kengo Monden	3	Smc
#20	Lubos Vokel	3	Pistonpower Aps
#21	Maciej BUJEWICZ	3	Hamilton Sundstrand
#22	Marcin CIS	3	Hamilton Sundstrand
#23	Marcin KORCZYNSKI	3	Hamilton Sundstrand
#24	Paul Wayne Schmidt	3	Vortex Pipe Systems
#25	Peter Kloft	3	Hydac Technology Gmbh
#26	Peter Zavadinka	3	Pistonpower Aps
#27	Piotr Sawicki	3	Hamilton Sundstrand
#28	QingHui Yuan	3	Eaton
#29	Uwe Bernhard Pascal Stein	3	Artemis Intelligent Power Limited
#30	Youji Takakuwa	3	Smc
#31	Zbigniew Jaskiewicz	3	Hamilton Sundstrand
#32	Aki Iwamoto	2	Smc
#33	Akihiro Kazama	2	Smc
#34	Akira Kirita	2	Mitsubishi Electric
#35	Akihiro Toda	2	Honda Motor Co.
#36	Andy Borja	2	Sun Hydraulics
#37	Austin Schneider	2	Crystaphase Products
#38	Barry T. Brinks	2	Woodward
#39	Bodo Neef	2	Festo Se & Co. Kg
#40	Christoph Maile	2	Festo Se & Co. Kg
#41	Christoph Stoenner	2	Hydac Filtertechnik Gmbh
#42	David M. Matz	2	Aladdin Engineering And Manufacturing
#43	Davide MESTURINI	2	Walvoil S.P.A.
#44	Edward R. Horn	2	Aladdin Engineering And Manufacturing
#45	Gottfried Hendrix	2	Robert Bosch Gmbh
#46	Gregory F. Matz	2	Aladdin Engineering And Manufacturing
#47	Gregory Meignat	2	Goodrich Actuation Systems Sas
#48	Hideyasu Muraoka	2	Kawasaki
#49	Hideyuki Sakata	2	Mitsubishi Electric
#50	Hideki Tanaka	2	Hitachi
#51	James Chuan	2	Kudos Mechanical Co.
#52	Jakub Sarafin	2	Hamilton Sundstrand
#53	John N. Glover	2	Crystaphase Products
#54	Jorgen P. Todsen	2	Pistonpower Aps
#55	Ken Tamura	2	Smc
#56	Kouji Ishikawa	2	Hitachi Construction Machinery Co.
#57	Koji Ito	2	Denso
#58	Lukasz WIKTORKO	2	Hamilton Sundstrand
#59	Masamichi Iino	2	Mitsubishi Electric
#60	Masayuki Kobayashi	2	Denso
#61	Masanari Kojima	2	Kyb
#62	Magnus Landberg	2	Saab Ab
#63	Masayuki Nakamura	2	Hitachi
#64	Mariko Ogata	2	Kawasaki
#65	Natalie E. Bell	2	Aladdin Engineering And Manufacturing
#66	Naoto Kawabuchi	2	Tadano
#67	Nariman Sepehri	2	University Of Manitoba
#68	Naoki Shinjo	2	Fujitsu Limited
#69	Naofumi Yoshida	2	Empire Technology Development
#70	Niall James Caldwell	2	Artemis Intelligent Power Limited
#71	Peter Ham	2	Crystaphase Products
#72	Ryan J. Malloy	2	Milwaukee Electric Tool
#73	Scott R. Jones	2	Aladdin Engineering And Manufacturing
#74	Seiji Hijikata	2	Hitachi Construction Machinery Co.
#75	Shigehiro Arai	2	Seiko Instruments
#76	Shigeto Hirai	2	Mitsubishi Electric
#77	Shinya Imura	2	Hitachi Construction Machinery Co.
#78	Steven H. Marquardt	2	Unknown
#79	Taiki Asahara	2	Mitsubishi Electric
#80	Takashi Nakahara	2	Canon
#81	Takafumi Ogino	2	Mitsubishi Electric
#82	Takanori Okazaki	2	Mitsubishi Electric
#83	Takeshi Terao	2	Kyb
#84	Thomas K. Yeung	2	Caterpillar
#85	Yasuhiro Fukumori	2	Tadano
#86	Yuichi Ogawa	2	Fujitsu Limited
#87	Yutaka Tanaka	2	—
#88	Karen M. VanderWeide	1	Dadco
#89	Edwin Staudacker	1	Hilti Aktiengesellschaft
#90	Keshava Prasad Pare Kooradka	1	The Boeing
#91	Abdul Motin	1	Ford
#92	Abbigail Ullrich	1	Schlumberger Technology
#93	Achim Helbig	1	Moog
#94	Adam Jude Ahne	1	Lexmark International
#95	Adrian Eschenmoser	1	Vat Holding Ag
#96	Adrian Trachte	1	Robert Bosch Gmbh
#97	Agostino Medaglia	1	Microtecnica S.R.L.
#98	Ahmed A. Imam	1	University Of Manitoba
#99	Akihito Suzuki	1	Mitsubishi Electric
#100	Alexander Albert	1	Hydac Technology Gmbh

Top Companies

Rank ↑	Company ↕	Patents ↕
1	Hamilton Sundstrand	14
2	Smc	14
3	Eaton Intelligent Power Limited	10
#4	The Boeing	8
#5	Eagle Industry Co.	7
#6	Kawasaki	7
#7	Pistonpower Aps	6
#8	Sun Hydraulics	6
#9	Meta	6
#10	Hydac Systems & Services Gmbh	5
#11	Robert Bosch Gmbh	5
#12	Caterpillar	5
#13	John Deere	5
#14	Festo Se & Co. Kg	4
#15	Hitachi Construction Machinery Co.	4
#16	Kubota	4
#17	Nabtesco	4
#18	Artemis Intelligent Power Limited	3
#19	Hydac Technology Gmbh	3
#20	Kyb	3
#21	Mitsubishi Electric	3
#22	Vortex Pipe Systems	3
#23	Woodward	3
#24	General Motors	3
#25	Airbus Operations Limited	2
#26	Aladdin Engineering And Manufacturing	2
#27	Cnh Industrial America	2
#28	Crystaphase Products	2
#29	Danfoss Power Solutions Aps	2
#30	Danfoss Power Solutions Gmbh & Co. Ohg	2
#31	Fisher Controls International	2
#32	Goodrich Actuation Systems Sas	2
#33	Toyota Industries	2
#34	Kudos Mechanical Co.	2
#35	Microtecnica S.R.L.	2
#36	Nidec Tosok	2
#37	Saab Ab	2
#38	Schlumberger Technology	2
#39	Seiko Instruments	2
#40	Tadano	2
#41	Twin Disc	2
#42	University Of Manitoba	2
#43	Unknown	2
#44	Voith Patent Gmbh	2
#45	Volvo Construction Equipment Ab	2
#46	Walvoil S.P.A.	2
#47	Aerocontrolex Group	1
#48	Airbus Defence And Space Gmbh	1
#49	Air Power Systems Co.	1
#50	Applied Industrial Technologies	1
#51	Audi Ag	1
#52	Balmoral Comtec Limited	1
#53	Borgwarner	1
#54	Boston Dynamics	1
#55	Bridgestone	1
#56	B&R Industrial Automation Gmbh	1
#57	Buemach Engineering International B.V.	1
#58	Chen Sound Industrial Co.	1
#59	Ckd	1
#60	Clark Equipment	1
#61	Clearmotion	1
#62	Contitech Mgw Gmbh	1
#63	Dadco	1
#64	Denso	1
#65	Dr. Ing. H.C. F. Porsche Ag	1
#66	Eaton	1
#67	Eishin Technology Co.	1
#68	Enerpac Tool Group	1
#69	Fujikin Incorporated	1
#70	Fujikura Composites	1
#71	Gencell	1
#72	Goodrich	1
#73	Goodrich Actuation Systems Limited	1
#74	Hawe Altenstadt Holding Gmbh	1
#75	Hawe Hydraulik Se	1
#76	Hilti Aktiengesellschaft	1
#77	Horiba Stec, Co.	1
#78	Husco International	1
#79	Hydac Mobilhydraulik Gmbh	1
#80	Hyundai Motor	1
#81	Indian Oil Corporation Limited	1
#82	Industries Mailhot	1
#83	Jungheinrich Ag	1
#84	Kalsi Engineering	1
#85	Kautex Maschinenbau Gmbh	1
#86	Kepco Nuclear Fuel Co.	1
#87	Kia Motors	1
#88	Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh	1
#89	Kobelco Construction Machinery Co.	1
#90	Komatsu	1
#91	Korea Institute Of Energy Research	1
#92	Kosmek	1
#93	Kti Hydraulics	1
#94	Kunshan Go-Visionox Opto-Electronics Co.	1
#95	Leonardo S.P.A.	1
#96	Lewmar Limited	1
#97	Libertine Fpe	1
#98	Liebherr-Mining Equipment Colmar Sas	1
#99	L&T Technology Services Limited	1
#100	Mac Valves	1

Fluid systems and actuators Patent Leaders in 2021 2021

Patents per Year

Top Inventors

Top Companies