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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 2023 2023

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 Tarun Khurana 10 Illumina
2 Daniel E. Adamek 9 Donaldson Company
3 Hiroko Takahashi 8 Furukawa Electric Co.
#4 Jeffrey R. Ries 8 Caterpillar
#5 Kaori Sekine 8 Furukawa Electric Co.
#6 Masayuki Fukushima 8 Furukawa Electric Co.
#7 Sadahiro Kato 8 Furukawa Electric Co.
#8 Sankara Sri Venkata RAMAKUMAR 8 Indian Oil Corporation Limited
#9 Takao Masuda 8 Furukawa Electric Co.
#10 Takuya Yoshikawa 8 Furukawa Electric Co.
#11 Yuichiro Banba 8 Furukawa Electric Co.
#12 Yuta Nakasaka 8 Furukawa Electric Co.
#13 Dan Xie 7 Chevron
#14 Jin Woo Choung 7 Hyundai Motor
#15 Jon T. Immel 7 Caterpillar
#16 Max P. McDaniel 7 Chevron
#17 Akitoshi Yamada 6 Canon
#18 Ali Agah 6 Illumina
#19 Antoine Fecant 6 Ifp Energies Nouvelles
#20 Benny K. Nelson 6 Donaldson Company
#21 Benjamin H. Wunsch 6 IBM
#22 Chuansheng Bai 6 ExxonMobil
#23 Darrell Lee Morehouse, III 6 Caterpillar
#24 David A. Weitz 6 Harvard University
#25 Gerard Malgorn 6 Cummins Filtration Ip
#26 Giorgio Girondi 6 Ufi Filters S.P.A.
#27 Hiroyuki Ishinaga 6 Canon
#28 Isao Chinzei 6 Toyota
#29 Jan Schoenhaber 6 Umicore Ag & Co. Kg
#30 Jihad M. Dakka 6 ExxonMobil
#31 Kalyan Handique 6 Handylab
#32 Kyle Miller 6 Marathon Petroleum Company Lp
#33 Masahiko Kubota 6 Canon
#34 Preeti Kamakoti 6 ExxonMobil
#35 Robert Astle 6 Kx Technologies
#36 Sebastien A. Duval 6 Saudi Arabian Oil
#37 Sohel Shaikh 6 Saudi Arabian Oil
#38 Steven K. Campbell 6 Donaldson Company
#39 Tetsuya KAMIMURA 6 Fujifilm
#40 Teruo Ozaki 6 Canon
#41 Tetsuya Shimizu 6 Aisin Aw Co.
#42 Wei Xu 6 Saudi Arabian Oil
#43 Yoshiyuki Imanaka 6 Canon
#44 Yue Geng 6 BOE
#45 Yumi Yanai 6 Canon
#46 Alexander Govyadinov 5 HP
#47 Alexander E. Kuperman 5 Chevron
#48 Aruna Ramkrishnan 5 ExxonMobil
#49 Bamdad Bahar 5 Ffi Ionix Ip
#50 Benjamin Jones 5 Imec Vzw
#51 Brian M. McDonald 5 Magna Imperio Systems
#52 David J. Beebe 5 WARF
#53 David West 5 Sabic Global Technologies B.V.
#54 Hiromasa Suzuki 5 Toyota
#55 Hui Liao 5 BOE
#56 Izak Nieuwoudt 5 Koch-Glitsch, Lp
#57 Jing Lu 5 Johnson Matthey Public Limited
#58 Jong Wook Bae 5 KAIST
#59 Joshua T. Smith 5 IBM
#60 Kathy S. Clear 5 Chevron
#61 Kevin Roderick 5 Aqua Membranes
#62 Le GU 5 BOE
#63 Masahide Miura 5 Toyota
#64 Madhusudan Sau 5 Indian Oil Corporation Limited
#65 Motaz Khawaji 5 Saudi Arabian Oil
#66 Paul Richard Phillips 5 Johnson Matthey Public Limited
#67 Peizhi Cai 5 BOE
#68 Philip Carl Spengler 5 Caterpillar
#69 Rodney Herrington 5 Aqua Membranes
#70 Satomi Takahashi 5 Kanegafuchi Kagaku Kogyo
#71 Tadashi Omatsu 5 Fujifilm
#72 Thomas Loewe 5 Sartorius Stedim Biotech Gmbh
#73 Willie L. Stamey, Jr. 5 Dana Limited
#74 Xiaoying Ouyang 5 Chevron
#75 Aadesh Harale 4 Saudi Arabian Oil
#76 Ahmad Bahamdan 4 Saudi Arabian Oil
#77 Ahmad Moini 4 Basf Se
#78 Akira Yamamoto 4 Hitachi
#79 Anjaneya S. Kovvali 4 ExxonMobil
#80 Anita S. Lee 4 ExxonMobil
#81 Aqil Jamal 4 Saudi Arabian Oil
#82 Arta Motadel 4 Biotix
#83 Benjamin Bikson 4 Praxair Technology
#84 Ben Heichelbech 4 Apple
#85 Boris David Kogon 4 Bizzybee
#86 Cem E. Celik 4 Praxair Technology
#87 Chanbasha Basheer 4 KFUPM
#88 Charles Benton 4 Porifera
#89 Chien-Hua Chen 4 HP
#90 Courtney Ann Thain Roberts 4 US Navy
#91 Daniele Malleo 4 Berkeley Lights
#92 David Sullivan 4 Nova Chemicals (International) S.A.
#93 Douglas Munroe Beall 4 Corning Incorporated
#94 Ethan Demeter 4 Magna Imperio Systems
#95 Feras Hamad 4 Saudi Arabian Oil
#96 Fengchun Pang 4 BOE
#97 Fumihiko Yoshioka 4 Ngk Insulators
#98 Guy Richard Chandler 4 Johnson Matthey Public Limited
#99 Gurpreet Singh Kapur 4 Indian Oil Corporation Limited
#100 Guillaume Rodrigues 4 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Saudi Arabian Oil 57
2 LG 47
3 Donaldson Company 45
#4 Chevron 43
#5 Basf Se 39
#6 ExxonMobil 35
#7 KFUPM 29
#8 Toyota 28
#9 Mann+Hummel Gmbh 25
#10 University of California 24
#11 Cummins Filtration Ip 22
#12 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude 20
#13 Hyundai Motor 19
#14 BOE 19
#15 Ifp Energies Nouvelles 18
#16 Johnson Matthey Public Limited 18
#17 Illumina 17
#18 KAIST 17
#19 Korea Institute Of Science And Technology 16
#20 Ngk Insulators 16
#21 Unknown 16
#22 Dow Global Technologies 15
#23 IBM 15
#24 Bio-Rad Laboratories 14
#25 Corning Incorporated 14
#26 Fujifilm 14
#27 Hamilton Sundstrand 14
#28 MIT 14
#29 Umicore Ag & Co. Kg 14
#30 Uop 14
#31 Emd Millipore 13
#32 King Abdullah University Of Science And Technology 13
#33 Lawrence Livermore National Security 13
#34 Uchicago Argonne 13
#35 Samsung 13
#36 China Petroleum & Chemical 12
#37 HP 12
#38 Harvard University 11
#39 Sartorius Stedim Biotech Gmbh 11
#40 Sumitomo Chemical 11
#41 Caterpillar 11
#42 Thermo Fisher 11
#43 3M 10
#44 Arizona Board Of Regents For And On Behalf Of Arizona State University 10
#45 Cataler 10
#46 Entegris 10
#47 Kia 10
#48 Mitsubishi Electric 10
#49 Waters Technologies 10
#50 CNRS 9
#51 Furukawa Electric Co. 9
#52 Indian Oil Corporation Limited 9
#53 Kia Motors 9
#54 Praxair Technology 9
#55 Sabic Global Technologies B.V. 9
#56 Shimadzu 9
#57 WARF 9
#58 Canon 9
#59 Berkeley Lights 8
#60 Denso 8
#61 Enplas 8
#62 Nanjing University 8
#63 Danaher 8
#64 Beijing Boe Optoelectronics Technology Co. 7
#65 Cytiva Sweden Ab 7
#66 Evoqua Water Technologies 7
#67 Georgia Tech Research 7
#68 Honda Motor Co. 7
#69 ITRI 7
#70 Korea University Research And Business Foundation 7
#71 Purdue Research Foundation 7
#72 Shell Usa 7
#73 University Of Texas System 7
#74 Tongji University 7
#75 Merck 7
#76 Abbott 6
#77 Apple 6
#78 Asahi Kasei Kabushiki Kaisha 6
#79 Casale Sa 6
#80 Coway Co. 6
#81 Evonik Operations Gmbh 6
#82 Gambro Lundia Ab 6
#83 Global Life Sciences Solutions Usa 6
#84 Koch-Glitsch, Lp 6
#85 Kx Technologies 6
#86 Marathon Petroleum Company Lp 6
#87 Murata Manufacturing Co. 6
#88 Parker-Hannifin 6
#89 University of Minnesota 6
#90 Research & Business Foundation Sungkyunkwan University 6
#91 Robert Bosch Gmbh 6
#92 Schlumberger Technology 6
#93 The Johns Hopkins University 6
#94 Toray Industries 6
#95 Ufi Filters S.P.A. 6
#96 Ut-Battelle 6
#97 W.L. Gore & Associates Gmbh 6
#98 Aqua Membranes 5
#99 Atlas Copco Airpower, Naamloze Vennootschap 5
#100 Battelle Memorial Institute 5