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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Fluid pumps

Fluid pumps Patent Leaders in 2018 2018

Primary CPC class F04 · 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 1,903 patents in 2019.peak 1,9031996: 734 patents19961997: 633 patents1998: 725 patents1999: 734 patents19992000: 1,125 patents2001: 1,188 patents2002: 1,162 patents20022003: 1,169 patents2004: 940 patents2005: 728 patents20052006: 831 patents2007: 717 patents2008: 684 patents20082009: 699 patents2010: 804 patents2011: 903 patents20112012: 1,363 patents2013: 1,203 patents2014: 1,230 patents20142015: 1,296 patents2016: 1,267 patents2017: 1,564 patents20172018: 1,580 patents2019: 1,903 patents2020: 1,831 patents20202021: 1,678 patents2022: 1,787 patents2023: 1,577 patents20232024: 1,792 patents2025: 1,624 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Wen-San Chou 12 Unik World Industrial Co.
2 Joshua W. Steffen 10 Caterpillar
3 Cory A. Brown 9 Caterpillar
#4 Byeongchul Lee 7 LG
#5 Craig M. Beers 7 Hamilton Sundstrand
#6 Dana R. Coldren 7 Caterpillar
#7 Junya Yano 7 Toyota Industries
#8 Ken Suitou 7 —
#9 Alan R. Stockner 6 Caterpillar
#10 Cheolhwan Kim 6 LG
#11 Takahiro Suzuki 6 Toyota Industries
#12 Takehito Tamaoka 6 Nidec
#13 Adrienne M. Brasche 5 Caterpillar
#14 Atsushi Kono 5 Mitsubishi Electric
#15 Gregory William Hahn 5 Haier Us Appliance Solutions
#16 Inho Won 5 LG
#17 Jeremy Grant Martin 5 Energy Recovery
#18 Kangwook Lee 5 LG
#19 Ken Oikawa 5 Sumitomo Heavy Industries
#20 Marc McKinzie 5 Regal Beloit America
#21 Sana Mahmood 5 Caterpillar
#22 Shinya Yamamoto 5 Toyota Industries
#23 Sunil J. Bean 5 Caterpillar
#24 Tatsuya Koide 5 Toyota Industries
#25 Takahide Tadokoro 5 Mitsubishi Electric
#26 Yasuaki Kato 5 Mitsubishi Electric
#27 Yongkyu Choi 5 LG
#28 Yusuke Kinoshita 5 Toyota Industries
#29 Akio Fujii 4 Canon
#30 Donghan Kim 4 Samsung
#31 Hiroki Nagano 4 Toyota Industries
#32 Hiromi Sakai 4 Denso
#33 Jacob A. Bayyouk 4 S.P.M. Flow Control
#34 James J. GU 4 Fluid Handling
#35 Jaesang Lee 4 LG
#36 Junghae Kim 4 LG
#37 Kazuhiko Fukushima 4 Nidec
#38 Kazunari HONDA 4 Toyota Industries
#39 Kirill M. Ignatiev 4 Emerson Climate Technologies
#40 Kwangwoon Ahn 4 LG
#41 Masatoshi Kuroyanagi 4 Denso
#42 Mark W. Wood 4 Devilbiss Air Power
#43 Michael James Dutka 4 GE
#44 Michael M. Perevozchikov 4 Emerson Climate Technologies
#45 Norman Carl Golm, JR. 4 Regal Beloit America
#46 Nobuyoshi Sakuma 4 Daikin Industries
#47 Nobuhira Tanaka 4 Murata Manufacturing Co.
#48 Rachele Barbara Cocks 4 Regal Beloit America
#49 Richard E. Annati 4 Caterpillar
#50 Roy J. Doepker 4 Emerson Climate Technologies
#51 Ronald J. Duppert 4 Bitzer Kühlmaschinenbau Gmbh
#52 Seth E. Rosen 4 Hamilton Sundstrand
#53 Tatsushi Mori 4 Toyota Industries
#54 Tomoyuki Fujita 4 Kyb
#55 Tom M. Simmons 4 White Knight Fluid Handling
#56 Tsuyoshi Yamaguchi 4 Panasonic
#57 Yusuke Yamazaki 4 Toyota Industries
#58 Alexander Patrick Theodossiou 3 Energy Recovery
#59 Andreas Apperger 3 Robert Bosch Gmbh
#60 Andrew A. Cheng 3 Fluid Handling
#61 Brian R. Butler 3 Emerson Climate Technologies
#62 Brian J. Mornan 3 Dyna-Tech Sales
#63 Byeongil An 3 Mitsubishi Heavy Industries Engine & Turbocharger
#64 Carola Diebold 3 Robert Bosch Gmbh
#65 Chao Fou Hsu 3 —
#66 Ching Hang LEUNG 3 Johnson Electric S.A.
#67 Daniel R. Baldwin 3 Caterpillar
#68 Daiji Furuhashi 3 Denso
#69 David M. Simmons 3 White Knight Fluid Handling
#70 Dieter Best 3 Ebm-Papst Mulfingen
#71 Dietmar Erich Bernhard Lilie 3 Empresa Brasileira De Compressores S.A.—Embraco
#72 Douglas Jahnke 3 Premium Oilfield Technologies
#73 Eli Oklejas, Jr. 3 Fluid Equipment Development Company
#74 Eric Chrabascz 3 Hamilton Sundstrand
#75 Frank J. Beitz 3 Dyna-Tech Sales
#76 Gary King 3 Dyson Technology Limited
#77 Gary D. White 3 Black & Decker
#78 Graham A. Scott 3 GE
#79 Harold W. Hipsky 3 Hamilton Sundstrand
#80 Hiroyuki Miyata 3 Mitsubishi Heavy Industries Compressor
#81 Hiroyuki Nakaima 3 Toyota Industries
#82 Hiromichi OGAWA 3 Toyota Industries
#83 Hung M. Pham 3 Emerson Climate Technologies
#84 Jason Jon Kreidler 3 Regal Beloit America
#85 Jingtao Yang 3 Panasonic
#86 Jose L. Gilarranz 3 Dresser-Rand
#87 John M. Simmons 3 GE
#88 Johan Stenbeck 3 Tetra Laval Holdings & Finance S.A.
#89 John Sheldon Wagley 3 Regal Beloit America
#90 Jürgen Schöne 3 Ebm-Papst Mulfingen
#91 Junichi Takahata 3 Toyota Industries
#92 Kazuhiro Asayama 3 Toyota
#93 Kavan Graybill 3 Raptor Lift Solutions
#94 Kazuhiro Kuroki 3 Toyota Industries
#95 Kenji A. Kingsford 3 Furon
#96 Kei Nishii 3 Toyota Industries
#97 Kentarou Oda 3 Daikin Industries
#98 Kitae JANG 3 LG
#99 Kiwon Noh 3 LG
#100 Koji Saga 3 Hitachi Automotive Systems

Top Companies

Rank ↑ Company ↕ Patents ↕
1 GE 53
2 LG 38
3 RTX (Raytheon) 37
#4 Toyota Industries 30
#5 Mitsubishi Electric 30
#6 Denso 25
#7 Caterpillar 25
#8 Emerson Climate Technologies 23
#9 Hamilton Sundstrand 22
#10 Robert Bosch Gmbh 22
#11 Borgwarner 21
#12 Nidec 17
#13 Regal Beloit America 16
#14 Panasonic 16
#15 Daikin Industries 15
#16 Ford 13
#17 Baker Hughes Holdings 11
#18 Delta Electronics 11
#19 Dyson Technology Limited 11
#20 Mitsubishi Heavy Industries Compressor 11
#21 Rolls-Royce Plc 11
#22 Grundfos Holding A/S 10
#23 Johnson Electric S.A. 10
#24 Sumitomo Heavy Industries 10
#25 Honeywell 10
#26 Continental Automotive Gmbh 9
#27 Dresser-Rand 9
#28 Edwards Limited 9
#29 Shimadzu 9
#30 Toyota 9
#31 Hanon Systems 8
#32 Hitachi Automotive Systems 8
#33 Ihi 8
#34 Asia Vital Components Co. 7
#35 Bitzer Kühlmaschinenbau Gmbh 7
#36 Ebm-Papst Mulfingen 7
#37 Energy Recovery 7
#38 Ingersoll-Rand 7
#39 Magna Powertrain Bad Homburg Gmbh 7
#40 Minebea Co. 7
#41 Murata Manufacturing Co. 7
#42 Whirlpool 7
#43 Haier Us Appliance Solutions 6
#44 Kyb 6
#45 Mitsubishi Heavy Industries Thermal Systems 6
#46 Nuovo Pignone Srl 6
#47 Pfeiffer Vacuum 6
#48 Pierburg Pump Technology Gmbh 6
#49 Siemens Aktiengesellschaft 6
#50 Snecma 6
#51 Trane International 6
#52 Atlas Copco Airpower, Naamloze Vennootschap 5
#53 Graco Minnesota 5
#54 HP 5
#55 Hitachi Industrial Equipment Systems Co. 5
#56 Mahle International Gmbh 5
#57 Unknown 5
#58 Aisin Aw Co. 4
#59 Aisin Seiki Kabushiki Kaisha 4
#60 Carrier 4
#61 Danfoss A/S 4
#62 Eaton Intelligent Power Limited 4
#63 Ecp Entwicklungsgesellschaft Mbh 4
#64 Emerson Climate Technologies (Suzhou) Co. 4
#65 Flowserve Management 4
#66 Fluid Handling 4
#67 Fujitsu General Limited 4
#68 Grundfos Management A/S 4
#69 Hitachi 4
#70 Hyundai Motor 4
#71 Johnson Controls Technology 4
#72 Kobe Steel 4
#73 Man Diesel & Turbo Se 4
#74 Rolls-Royce Deutschland 4
#75 Rolls-Royce North America 4
#76 Safran Aero Boosters 4
#77 Sanden 4
#78 Schwäbische Hüttenwerke Automotive Gmbh 4
#79 S.P.M. Flow Control 4
#80 Sulzer Management Ag 4
#81 Tc1 4
#82 Westinghouse Air Brake 4
#83 White Knight Fluid Handling 4
#84 Samsung 4
#85 Agilent Technologies 3
#86 Aisan Kogyo Kabushiki Kaisha 3
#87 Ansaldo Energia Switzerland Ag 3
#88 Bendix Commercial Vehicle Systems 3
#89 Beto Engineering & Marketing Co. 3
#90 Black & Decker 3
#91 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft 3
#92 CEA 3
#93 Continental Teves Ag & Co. Ohg 3
#94 Cummins Emission Solutions 3
#95 Dyna-Tech Sales 3
#96 Ebara 3
#97 Fmc 3
#98 Gardner Denver Nash 3
#99 Gojo Industries 3
#100 Greenheck Fan 3