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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Separation and mixing

Separation and mixing Patent Leaders in 2021 2021

Primary CPC class B01 · Section B

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 4,008 patents in 2020.peak 4,0081996: 1,961 patents19961997: 2,063 patents1998: 2,413 patents1999: 2,566 patents19992000: 2,499 patents2001: 2,600 patents2002: 2,467 patents20022003: 2,480 patents2004: 2,185 patents2005: 2,002 patents20052006: 2,059 patents2007: 1,942 patents2008: 2,013 patents20082009: 2,101 patents2010: 2,885 patents2011: 2,862 patents20112012: 3,039 patents2013: 3,344 patents2014: 3,430 patents20142015: 3,481 patents2016: 3,419 patents2017: 3,494 patents20172018: 3,497 patents2019: 3,883 patents2020: 4,008 patents20202021: 3,910 patents2022: 3,982 patents2023: 3,677 patents20232024: 3,822 patents2025: 3,736 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Joshua T. Smith 15 IBM
2 Benjamin H. Wunsch 12 IBM
3 Dong Hyun Ko 11 LG
#4 Chantelle Domingue 10 HP
#5 Takashi Kamijo 10 Mitsubishi Electric
#6 Manish Giri 9 HP
#7 Tatsuya Tsujiuchi 9 Mitsubishi Electric
#8 Hai-Ying Chen 8 Johnson Matthey Public Limited
#9 Masaru Banju 8 Murata Manufacturing Co.
#10 Masahiro Kimura 8 Toray Industries
#11 Pascal Neef 8 Mann+Hummel Gmbh
#12 Takashi Kondo 8 —
#13 Alexander Govyadinov 7 HP
#14 Arta Motadel 7 Biotix
#15 Benny K. Nelson 7 Donaldson Company
#16 Javier A. Rodriguez 7 Caterpillar
#17 Jose Eduardo Guzman 7 Hamilton Associates
#18 Kyong Yong Cha 7 LG
#19 Matthew David Smith 7 HP
#20 Michael W. Kobe 7 3M
#21 Michael S. Wendland 7 3M
#22 Sung-Cheol Kim 7 IBM
#23 Takuya Hirata 7 Mitsubishi Electric
#24 Thomas Barresi 7 Hamilton Associates
#25 Weiqi Hua 7 Wanhua Chemical Group Co.
#26 Andrew R. Fox 6 3M
#27 Daniel Levner 6 Emulate
#28 David A. Weitz 6 Harvard University
#29 Eric D. Schwerdtfeger 6 Chevron
#30 Gregory Sergeevich Chernov 6 Haier Us Appliance Solutions
#31 Hirotaka KUNO 6 Umicore Shokubai Japan Co.
#32 Hiroshi Tanaka 6 Fujitsu Limited
#33 Jianmei Lu 6 Soochow University
#34 Klaus Gebauer 6 GE
#35 Masayuki Hanakawa 6 Toray Industries
#36 Nadine Donauer 6 Mann+Hummel Gmbh
#37 Pavel Kornilovich 6 HP
#38 Peter Paul Blaszcak 6 Biotix
#39 Regis Didier Alain Vilagines 6 Saudi Arabian Oil
#40 Stacey Gifford 6 IBM
#41 Tae Jin Kim 6 Samsung
#42 Vasily Simanzhenkov 6 Nova Chemicals (International) S.A.
#43 Yuan Li 6 Wanhua Chemical Group Co.
#44 Abderrazak Traidia 5 Saudi Arabian Oil
#45 Christopher David Hinojosa 5 Emulate
#46 Dana A. Belton 5 Hamilton Associates
#47 David Sullivan 5 Nova Chemicals (International) S.A.
#48 Gerhard Mestl 5 —
#49 Gerald Vorberg 5 Basf Se
#50 Jeffrey T. Miller 5 Amoco
#51 Jeremy Sells 5 HP
#52 J. Tanner Nevill 5 Berkeley Lights
#53 Joseph Michael Fedeyko 5 Johnson Matthey Public Limited
#54 Jun Han 5 LG
#55 Junko Watanabe 5 Murata Manufacturing Co.
#56 Kathy S. Clear 5 Chevron
#57 Katabathini Narasimharao 5 King Abdulaziz University
#58 Kenta Iwai 5 Toray Industries
#59 Klaus Wanninger 5 Clariant Produkte (Deutschland) Gmbh
#60 Koji Nakatsuji 5 Toray Industries
#61 Lianhui Ding 5 Saudi Arabian Oil
#62 Lutz Weber 5 Thinxxs Microtechnology Gmbh
#63 Mansour S. Bader 5 —
#64 Mark E. Davis 5 Caltech
#65 Mark L. Hlavinka 5 Chevron
#66 Mark V. Holzmann 5 Cummins Filtration Ip
#67 Max P. McDaniel 5 Chevron
#68 Makoto Miyahara 5 Ngk Insulators
#69 Masashi NAKASHIMA 5 Umicore Shokubai Japan Co.
#70 Miao Sun 5 Saudi Arabian Oil
#71 Niklas Bengt Jakobsson 5 Haldor Topsøe A/S
#72 Omer Refa Koseoglu 5 Saudi Arabian Oil
#73 Osamu Miyamoto 5 Mitsubishi Heavy Industries Engineering
#74 Pascaline Tran 5 Basf Se
#75 Philip Carl Spengler 5 Caterpillar
#76 Sebastien A. Duval 5 Saudi Arabian Oil
#77 Simone Less 5 Saudi Arabian Oil
#78 Soonki Jung 5 LG
#79 Susan C. Koster 5 Uop
#80 Tarun Khurana 5 Illumina
#81 Tamotsu Kitade 5 Toray Industries
#82 Takahiko Takewaki 5 Mitsubishi Chemical
#83 Torsten Fritzsching 5 Mann+Hummel Gmbh
#84 Udi Meirav 5 Enverid Systems
#85 Xiaoliang Gao 5 Nova Chemicals (International) S.A.
#86 Abhijit Tarafder 4 Waters Technologies
#87 Adam M. Johns 4 Umicore Ag & Co. Kg
#88 Adnan Memic 4 King Abdulaziz University
#89 Ahmed Alshahrie 4 King Abdulaziz University
#90 Andrew Francis Chiffey 4 Johnson Matthey Public Limited
#91 Andrew Carl Larsen 4 Dropworks
#92 Andrew Boyd MacConnell 4 Plexium
#93 Atsushi Kobayashi 4 Seiko Epson
#94 Benjamin James Hadwen 4 Sharp Life Science (Eu) Limited
#95 Brent R. Constantz 4 Noria
#96 Cécile Lutz 4 Arkema France
#97 Christoph Hengst 4 Umicore Ag & Co. Kg
#98 Christopher M. Hobot 4 Medtronic
#99 Chang Hwan Kim 4 Samsung
#100 Christophe R. Laroche 4 Dow Global Technologies

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Saudi Arabian Oil 61
2 LG 53
3 Basf Se 47
#4 Donaldson Company 43
#5 Uop 43
#6 ExxonMobil 36
#7 IBM 34
#8 Toray Industries 32
#9 Ngk Insulators 31
#10 Mann+Hummel Gmbh 27
#11 3M 26
#12 Unknown 26
#13 HP 24
#14 Johnson Matthey Public Limited 24
#15 Umicore Ag & Co. Kg 24
#16 Chevron 24
#17 Cummins Filtration Ip 23
#18 Ifp Energies Nouvelles 23
#19 Hamilton Sundstrand 19
#20 Dow Global Technologies 18
#21 University of California 18
#22 Haldor Topsøe A/S 16
#23 King Abdulaziz University 16
#24 Toyota 16
#25 Illumina 15
#26 Thermo Fisher 15
#27 MIT 14
#28 Mitsubishi Chemical 14
#29 Shell Oil Compny 14
#30 Danaher 14
#31 Mitsubishi Heavy Industries Engineering 13
#32 Sabic Global Technologies B.V. 13
#33 Waters Technologies 13
#34 Cataler 12
#35 CNRS 12
#36 China Petroleum & Chemical 12
#37 King Abdullah University Of Science And Technology 12
#38 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude 12
#39 Caterpillar 12
#40 Bio-Rad Laboratories 11
#41 KFUPM 11
#42 KAIST 11
#43 Harvard University 11
#44 Sharp Life Science (Eu) Limited 11
#45 Samsung 11
#46 Caltech 10
#47 Korea Institute Of Science And Technology 10
#48 Purdue Research Foundation 10
#49 W.L. Gore & Associates Gmbh 10
#50 Asahi Kasei Kabushiki Kaisha 9
#51 Entegris 9
#52 Evonik Operations Gmbh 9
#53 Korea Institute Of Energy Research 9
#54 Lawrence Livermore National Security 9
#55 Murata Manufacturing Co. 9
#56 Nitto Denko 9
#57 GE 9
#58 Honeywell 9
#59 Corning Incorporated 8
#60 Coway Co. 8
#61 Dalian Institute Of Chemical Physics, Chinese Academy Of Sciences 8
#62 Ihi 8
#63 Siemens Healthcare Diagnostics 8
#64 Soochow University 8
#65 Tecan Trading Ag 8
#66 BOE 8
#67 Berkeley Lights 7
#68 Biotix 7
#69 Cytiva Bioprocess R&D Ab 7
#70 Emd Millipore 7
#71 Georgia Tech Research 7
#72 Halliburton Energy Services 7
#73 Hamilton Associates 7
#74 Korea University Research And Business Foundation 7
#75 Lummus Technology 7
#76 Nanyang Technological University 7
#77 National Technology & Engineering Solutions Of Sandia 7
#78 Nova Chemicals (International) S.A. 7
#79 Palo Alto Research Center Incorporated 7
#80 Sartorius Stedim Biotech Gmbh 7
#81 University Of Arkansas 7
#82 The Procter & Gamble 7
#83 Uchicago Argonne 7
#84 Wanhua Chemical Group Co. 7
#85 Ford 7
#86 General Motors 7
#87 Abbott 6
#88 Ada Carbon Solutions 6
#89 Amogreentech Co. 6
#90 Arkema France 6
#91 Battelle Memorial Institute 6
#92 Biomerieux 6
#93 Casale Sa 6
#94 Clariant 6
#95 CEA 6
#96 Cytiva Sweden Ab 6
#97 Daicel 6
#98 Doosan Heavy Industries & Construction Co. 6
#99 Emulate 6
#100 Fujifilm 6