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

Fluid pumps Patent Leaders All Time

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 Masahiro Kawaguchi 143 —
2 Masaki Ota 133 —
3 Ken Suitou 120 —
#4 Alex Horng 109 Sunonwealth Electric Machine Industry Co.
#5 Kazuya Kimura 96 —
#6 Chi-Feng Huang 88 Microjet Technology Co.
#7 Yung-Lung Han 85 Microjet Technology Co.
#8 James W. Bush 82 Carrier
#9 Shun-Chen Chang 81 Delta Electronics
#10 Shinya Yamamoto 81 Toyota Industries
#11 Wen-Shi Huang 79 Delta Electronics
#12 Tetsuhiko Fukanuma 76 —
#13 Kiyoshi Terauchi 75 Sanden
#14 Kelcy Jake Foster 74 Kerr Machine
#15 Thomas R. Barito 74 Scroll Technologies
#16 Christopher Todd Barnett 73 Kerr Machine
#17 Toshiro Fujii 71 —
#18 Scott Wu 70 Disney
#19 Wen-San Chou 69 Unik World Industrial Co.
#20 Hayato Ikeda 67 —
#21 Shih-Chang Chen 67 Microjet Technology Co.
#22 Dietmar Erich Bernhard Lilie 66 Empresa Brasileira De Compressores S.A.—Embraco
#23 Hiroaki Kayukawa 66 —
#24 Vishnu M. Sishtla 65 Carrier
#25 Cheolhwan Kim 64 LG
#26 Micheal Cole Thomas 64 Kerr Machine
#27 Byeongchul Lee 63 LG
#28 Zili Sun 62 Scroll Technologies
#29 Michael M. Perevozchikov 61 Emerson Climate Technologies
#30 Hao-Jan Mou 60 Microjet Technology Co.
#31 Paul V. Cooper 60 Molten Metal Equipment Innovations
#32 Robert C. Stover 59 Emerson Climate Technologies
#33 Yasushi Watanabe 58 —
#34 Kirill M. Ignatiev 57 Emerson Climate Technologies
#35 Craig M. Beers 55 Hamilton Sundstrand
#36 Nigel Paul Schofield 55 Edwards Limited
#37 John R. Williams 54 Scroll Technologies
#38 Stephen R. Quake 54 Caltech
#39 Joe T. Hill 53 Scroll Technologies
#40 Keigo Shirafuji 53 Eagle Industry Co.
#41 Nobuhira Tanaka 53 Murata Manufacturing Co.
#42 Kohei Fukudome 52 Eagle Industry Co.
#43 Kenji Takenaka 51 —
#44 Taku Adaniya 49 Toyota Industries
#45 Alexander Lifson 48 Carrier
#46 Gregory William Hahn 48 Haier Us Appliance Solutions
#47 Mark S. Nowell 48 Kerr Machine
#48 Jason Hugenroth 47 Scroll Technologies
#49 Kangwook Lee 46 LG
#50 Kazuo Murakami 46 —
#51 Masanori Masuda 46 Daikin Industries
#52 Naoya Yokomachi 46 —
#53 Jean-Luc M. Caillat 45 Copeland Lp
#54 Masanori Sonobe 45 —
#55 Roy J. Doepker 45 Emerson Climate Technologies
#56 Jia-Yu Liao 44 Microjet Technology Co.
#57 John Keith 44 Kerr Machine
#58 Kuo-Cheng Lin 44 Delta Electronics
#59 Masahiro Hayama 44 Eagle Industry Co.
#60 Mark W. Wood 44 Devilbiss Air Power
#61 Nicholas Son 44 Kerr Machine
#62 Kazuya Sato 43 Sanyo Electric Co.
#63 Makoto Takeuchi 43 Mitsubishi Electric
#64 Yoshiyuki Sakaguchi 43 Edwards Japan Limited
#65 Takashi Kabasawa 42 Edwards Japan Limited
#66 Tomoji Tarutani 42 —
#67 DeQuan Yu 41 Ford
#68 Brent J. Merritt 40 Hamilton Sundstrand
#69 Charles William Botkin 39 Hunter Fan
#70 Nobuyuki Nakajima 39 Diesel Kiki Co.
#71 Takayuki Kato 39 Toyota Industries
#72 Teruo Maruyama 39 Sumitomo Electric Industries
#73 Yoshiyuki Nakane 39 Toyota Industries
#74 Darryl A. Colson 38 Hamilton Sundstrand
#75 Mitsuo Inagaki 38 Nippon Soken
#76 Takahiro Suzuki 38 Toyota Industries
#77 Larry B. Gray 37 Deka Products Limited Parternship
#78 John C. Bucher 36 King Of Fans
#79 Ryo Matsubara 36 —
#80 Satoshi Umemura 36 Toyota Industries
#81 Shigeru Muramatsu 36 Yamaha
#82 Tatsuya Koide 36 Toyota Industries
#83 Wei-Ming Lee 36 Microjet Technology Co.
#84 Kenzo Matsumoto 35 Sanyo Electric Co.
#85 Toshiyuki Nakamura 35 Nikon
#86 Barton John Kenyon 34 Resmed Pty
#87 Edward J. Gallagher 34 RTX (Raytheon)
#88 Kenichiro Iwakiri 34 Mitsubishi Heavy Industries Engine & Turbocharger
#89 Marc A. Unger 34 Fluidigm
#90 Carlos Zamudio 33 Scroll Technologies
#91 Charles E. Bucher 33 King Of Fans
#92 Masao Akei 33 Emerson Climate Technologies
#93 Seokho Choi 33 LG
#94 Yukihiko Taguchi 33 Sanden
#95 Yusuke Yamazaki 33 Toyota Industries
#96 Allen J. Bartlett 32 Helix Technology
#97 Bobby Neal Norwood 32 Hunter Fan
#98 Hou-Pu Chou 32 Caltech
#99 Robert W. Stiles, Jr. 32 Pentair Water Pool And Spa
#100 Yoshitaka Shibamoto 32 Daikin Industries

Top Companies

Rank ↑ Company ↕ Patents ↕
1 LG 1,056
2 Toyota Industries 977
3 Mitsubishi Electric 595
#4 GE 572
#5 Robert Bosch Gmbh 519
#6 RTX (Raytheon) 500
#7 Hitachi 452
#8 Carrier 421
#9 Daikin Industries 380
#10 Sanden 370
#11 Denso 367
#12 Unknown 315
#13 Panasonic 280
#14 Delta Electronics 279
#15 Emerson Climate Technologies 274
#16 Hamilton Sundstrand 274
#17 Samsung 271
#18 General Motors 248
#19 Caterpillar 246
#20 Sumitomo Electric Industries 227
#21 Ingersoll-Rand 213
#22 Honeywell 212
#23 Ebara 204
#24 Nidec 203
#25 Copeland Lp 198
#26 Tecumseh Products 192
#27 Rolls-Royce Plc 187
#28 Ford 186
#29 Borgwarner 172
#30 Edwards Limited 163
#31 Baker Hughes Holdings 162
#32 Siemens Aktiengesellschaft 158
#33 Schlumberger Technology 147
#34 Mitsubishi Heavy Industries Compressor 142
#35 Hitachi Industrial Equipment Systems Co. 141
#36 Aisin Seiki Kabushiki Kaisha 140
#37 Halliburton Energy Services 139
#38 Scroll Technologies 138
#39 Sanyo Electric Co. 133
#40 Shimadzu 133
#41 Trane International 131
#42 Asia Vital Components Co. 130
#43 Danfoss A/S 129
#44 Eaton 128
#45 Kabushiki Kaisha Toshiba 128
#46 Hunter Fan 127
#47 Murata Manufacturing Co. 126
#48 Graco Minnesota 123
#49 Toyota 123
#50 Dresser-Rand 121
#51 Sunonwealth Electric Machine Industry Co. 120
#52 Atlas Copco Airpower, Naamloze Vennootschap 119
#53 Edwards Japan Limited 113
#54 Hanon Systems 111
#55 Honda Motor Co. 111
#56 Dyson Technology Limited 110
#57 Ihi 107
#58 Grundfos Holding A/S 106
#59 Nippondenso Co. 102
#60 Snecma 101
#61 Diesel Kiki Co. 100
#62 Microjet Technology Co. 99
#63 American Standard 93
#64 Hyundai Motor 92
#65 Regal Beloit America 90
#66 Sundstrand 88
#67 IBM 86
#68 Nippon Soken 84
#69 Foxconn 83
#70 Eagle Industry Co. 82
#71 Visteon Global Technologies 81
#72 Whirlpool 80
#73 Bitzer Kühlmaschinenbau Gmbh 79
#74 Ebm-Papst Mulfingen 79
#75 Itt Manufacturing Enterprises 79
#76 Ksb Aktiengesellschaft 78
#77 Parker-Hannifin 78
#78 Deka Products Limited Parternship 76
#79 Caltech 72
#80 Kobe Steel 71
#81 Gree Electric Appliances, Inc. Of Zhuhai 70
#82 ITRI 70
#83 Kerr Machine 69
#84 Sulzer Management Ag 69
#85 Ecp Entwicklungsgesellschaft Mbh 68
#86 Empresa Brasileira De Compressores S.A.—Embraco 68
#87 Foxconn Technology Group Co. 68
#88 Seiko Epson 67
#89 Delphi Technologies 66
#90 HP 66
#91 Helix Technology 65
#92 Leybold Gmbh 65
#93 Safran Aircraft Engines 65
#94 Fujitsu General Limited 64
#95 Pfeiffer Vacuum 63
#96 Minebea Co. 62
#97 Mitsubishi Heavy Industries Engine & Turbocharger 61
#98 Anest Iwata 58
#99 Black & Decker 58
#100 Westinghouse Electric 58