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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 2018 2018

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 Hiroshi Tanaka 11 Fujitsu Limited
2 Hiromitsu Nagayasu 10 Mitsubishi Electric
3 Hiromasa Suzuki 10 Toyota
#4 Masahide Miura 10 Toyota
#5 Sulaiman Saleh Al-Khattaf 10 KFUPM
#6 Takuya Hirata 10 Mitsubishi Electric
#7 Tsuyoshi Oishi 10 Mitsubishi Electric
#8 Jong Ku Lee 8 LG
#9 Joon Ho Shin 8 LG
#10 Marshall Medoff 8 Xyleco
#11 Toshitaka Tanabe 8 Toyota
#12 Sung Kyu Lee 7 LG
#13 Udi Meirav 7 Enverid Systems
#14 Yujiro Itami 7 Fujifilm Manufacturing Europe B.V.
#15 Anna Comengés Casas 6 Stat-Diagnostica & Innovation, S.L.
#16 André Roesgen 6 Mann+Hummel Gmbh
#17 Benny K. Nelson 6 Donaldson Company
#18 Bryant J. Pudil 6 Medtronic
#19 Christopher M. Hobot 6 Medtronic
#20 Gongshin Qi 6 General Motors
#21 Hai-Ying Chen 6 Johnson Matthey Public Limited
#22 Hans Thomann 6 ExxonMobil
#23 Isao Chinzei 6 Toyota
#24 Jesus Ching 6 Luminex
#25 Jordi Carrera Fabra 6 Stat-Diagnostica & Innovation, S.L.
#26 Krishna Gunugunuri 6 Toyota
#27 Ryota Onoe 6 Cataler
#28 Sebastian Vogt 6 Heraeus Medical Gmbh
#29 Stephen J. McCarthy 6 ExxonMobil
#30 Torin C. Peck 6 Toyota
#31 Wenyih F. Lai 6 ExxonMobil
#32 Abdullah M. Aitani 5 KFUPM
#33 Abhishek Roy 5 Dow Global Technologies
#34 Akira Morikawa 5 Toyota
#35 Amr Abdalla 5 KFUPM
#36 Andrei-Nicolae Parvulescu 5 Basf Se
#37 Arta Motadel 5 Biotix
#38 Atsuhiro Yukumoto 5 Mitsubishi Electric
#39 Bassam El Ali 5 —
#40 Bradly Aaron Kippel 5 GE
#41 Cécile Lutz 5 Arkema France
#42 Chuansheng Bai 5 ExxonMobil
#43 Christopher E. Holm 5 Cummins Filtration Ip
#44 Dana A. Belton 5 Hamilton Associates
#45 Darren Roy Link 5 Bio-Rad Laboratories
#46 David A. Weitz 5 Harvard University
#47 David W. Wright 5 General Motors
#48 Donald A. Masquelier 5 Bio-Rad Laboratories
#49 Eli Oklejas, Jr. 5 Fluid Equipment Development Company
#50 Fabian Wagner 5 Mann+Hummel Gmbh
#51 Frits Cornelis A. Baltus 5 Atlas Copco Airpower, Naamloze Vennootschap
#52 Gerhard Mestl 5 —
#53 Hiroshi Sekine 5 Canon
#54 Ian A. Tomlinson 5 Dow Global Technologies
#55 Israel Biran 5 Enverid Systems
#56 Jean W. Beeckman 5 ExxonMobil
#57 Jeffrey R. Long 5 University of California
#58 Jing Luo 5 Jiangnan Environmental Protection Group
#59 José Antonio Garcia Sánchez 5 Stat-Diagnostica & Innovation, S.L.
#60 Jose Eduardo Guzman 5 Hamilton Associates
#61 Joseph Kuczynski 5 IBM
#62 Kevin Ness 5 10X Genomics
#63 Kevin D. Wyndham 5 Waters Technologies
#64 Kosuke Iizuka 5 Cataler
#65 Lei Zhang 5 Microsoft
#66 Li Wen 5 Ecolab Usa
#67 Ludivine Bouvier 5 Arkema France
#68 Lylien Tan 5 Ecolab Usa
#69 Martin T. Gerber 5 Medtronic
#70 Masatoshi Hodotsuka 5 Kabushiki Kaisha Toshiba
#71 Mansur B. Ibrahim 5 KFUPM
#72 Mark Toetschinger 5 Ecolab Usa
#73 Mou Paul 5 Dow Global Technologies
#74 Narasimhan Sundaram 5 ExxonMobil
#75 Palani Arudra 5 KFUPM
#76 Paul F. Keusenkothen 5 ExxonMobil
#77 Peter Eisenberger 5 ExxonMobil
#78 Peter Voss 5 Ecolab Usa
#79 Rafael Bru Gibert 5 Stat-Diagnostica & Innovation, S.L.
#80 Sang Gi Lee 5 LG
#81 Satoshi Saito 5 Kabushiki Kaisha Toshiba
#82 Sepehr Kiani 5 Bio-Rad Laboratories
#83 Sharon Sjostrom 5 Ada-Es
#84 Steven K. Campbell 5 Donaldson Company
#85 Steven Scott Gieseke 5 Donaldson Company
#86 Takashi Kamijo 5 Mitsubishi Electric
#87 Terrence P. Everson 5 Ecolab Usa
#88 Terry Wright 5 Clear Cove Systems
#89 Thomas Barresi 5 Hamilton Associates
#90 Thomas Kluge 5 Heraeus Medical Gmbh
#91 Thomas Craig Masterman 5 Xyleco
#92 Young-Sam Kim 5 LG
#93 Yuki Aoki 5 Toyota
#94 Adam DE LA ZERDA 4 Visby Medical
#95 Adnan Esmail 4 Tesla
#96 Adrienne J. Thornburg 4 ExxonMobil
#97 Akiya Chiba 4 Cataler
#98 Akihiko Suda 4 Toyota Central R&D Labs
#99 Avelino Corma Canos 4 Saudi Arabian Oil
#100 Benjamin Hindson 4 10X Genomics

Top Companies

Rank ↑ Company ↕ Patents ↕
1 ExxonMobil 54
2 GE 51
3 Toyota 50
#4 LG 48
#5 Basf Se 38
#6 Mann+Hummel Gmbh 37
#7 Donaldson Company 33
#8 Uop 30
#9 Chevron 30
#10 KFUPM 29
#11 Johnson Matthey Public Limited 28
#12 Ifp Energies Nouvelles 26
#13 Dow Global Technologies 21
#14 University of California 20
#15 IBM 20
#16 Cataler 19
#17 Cummins Filtration Ip 18
#18 Saudi Arabian Oil 18
#19 Unknown 18
#20 3M 17
#21 Fujifilm 17
#22 Samsung 17
#23 Ecolab Usa 16
#24 L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude 16
#25 MIT 16
#26 Thermo Fisher 16
#27 China Petroleum & Chemical 15
#28 Haldor Topsøe A/S 15
#29 Toray Industries 15
#30 Kabushiki Kaisha Toshiba 14
#31 Korea Institute Of Energy Research 14
#32 Shell Oil Compny 14
#33 Hyundai Motor 13
#34 Danaher 13
#35 CNRS 12
#36 Council Of Scientific And Industrial Research 12
#37 Mitsubishi Electric 12
#38 Ngk Insulators 12
#39 Harvard University 12
#40 Umicore Ag & Co. Kg 12
#41 Bio-Rad Laboratories 11
#42 Evonik Degussa Gmbh 11
#43 Hamilton Sundstrand 11
#44 General Motors 11
#45 Corning Incorporated 10
#46 Fujifilm Manufacturing Europe B.V. 10
#47 KAIST 10
#48 Waters Technologies 10
#49 Ford 10
#50 Abbott 9
#51 Baker Hughes Holdings 9
#52 Hydac Filtertechnik Gmbh 9
#53 Linde Gmbh 9
#54 Total Raffinage Chimie 9
#55 Medtronic 9
#56 Becton, Dickinson And 8
#57 Clariant 8
#58 Ebara 8
#59 ITRI 8
#60 Koniniklijke Philips N.V. 8
#61 Korea Institute Of Science And Technology 8
#62 Parker-Hannifin 8
#63 Roche Diagnostics Operations 8
#64 Sulzer Chemtech Ag 8
#65 University Of Texas System 8
#66 Xyleco 8
#67 Panasonic 8
#68 Asahi Kasei Chemicals 7
#69 Fluor Technologies 7
#70 Johnson Matthey Plc 7
#71 King Saud University 7
#72 The Procter & Gamble 7
#73 Canon 7
#74 Caterpillar 7
#75 Arkema France 6
#76 Battelle Memorial Institute 6
#77 Emd Millipore 6
#78 Empire Technology Development 6
#79 Enverid Systems 6
#80 Evoqua Water Technologies 6
#81 Heraeus Medical Gmbh 6
#82 Hollingsworth & Vose 6
#83 Instituto Mexicano Del Petróleo 6
#84 Lotte Chemical 6
#85 Nitto Denko 6
#86 Phillips Petroleum 6
#87 Shimadzu 6
#88 Stat-Diagnostica & Innovation, S.L. 6
#89 US Army 6
#90 Total Sa 6
#91 Whirlpool 6
#92 W.R. Grace & Co.-Conn. 6
#93 Ada-Es 5
#94 Applied Biosystems 5
#95 Atlas Copco Airpower, Naamloze Vennootschap 5
#96 Bayer Healthcare 5
#97 Berkeley Lights 5
#98 Biotix 5
#99 Caltech 5
#100 Clear Cove Systems 5