Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Grinding and polishing Patent Leaders in 2020 2020

Primary CPC class B24 · 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 876 patents in 2001.peak 8761996: 408 patents19961997: 476 patents1998: 459 patents1999: 586 patents19992000: 765 patents2001: 876 patents2002: 825 patents20022003: 804 patents2004: 752 patents2005: 738 patents20052006: 783 patents2007: 543 patents2008: 382 patents20082009: 337 patents2010: 335 patents2011: 415 patents20112012: 474 patents2013: 542 patents2014: 489 patents20142015: 557 patents2016: 505 patents2017: 488 patents20172018: 501 patents2019: 513 patents2020: 398 patents20202021: 288 patents2022: 394 patents2023: 506 patents20232024: 473 patents2025: 432 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Rajeev Bajaj 10 Applied Materials
2 Daniel Redfield 9 Applied Materials
3 Hiroyuki Shinozaki 7 Ebara
#4 Ashwin CHOCKALINGAM 6 Applied Materials
#5 Bowen Xue 6 Citic Dicastal Co.
#6 Fred C. Redeker 6 Applied Materials
#7 Jason Garcheung Fung 6 Applied Materials
#8 Jeonghoon Oh 6 Applied Materials
#9 Jiandong Guo 6 Citic Dicastal Co.
#10 Mahendra C. ORILALL 6 Applied Materials
#11 Gregory E. Menk 5 Applied Materials
#12 Huiying Liu 5 Citic Dicastal Co.
#13 Mayu YAMAMURA 5 Applied Materials
#14 Michito Sato 5 Shin-Etsu Handotai Co.
#15 Boyi Fu 4 Applied Materials
#16 Chi-Ming Yang 4 TSMC
#17 Erwin Junker 4 Erwin Junker Maschinenfabrik Gmbh
#18 Hou T. Ng 4 HP
#19 Jeffrey James Hendron 4 Rohm And Haas Electronic Materials Cmp Holdings
#20 Mario CORNEJO 4 Applied Materials
#21 Nag B. Patibandla 4 Applied Materials
#22 Steven J. Keipert 4 3M
#23 Taro Takahashi 4 Ebara
#24 Toru Maruyama 4 Ebara
#25 Wendell V. Twelves 4 RTX (Raytheon)
#26 Andrew David Habermas 3 Seagate Technology
#27 Aniruddh Jagdish Khanna 3 Applied Materials
#28 Bainian Qian 3 Rohm And Haas Electronic Materials Cmp Holdings
#29 Boguslaw A. Swedek 3 Applied Materials
#30 Charles C. Garretson 3 Applied Materials
#31 Guido Valentini 3 Unknown
#32 Holger Schäfer 3 Satisloh Ag
#33 John T. Boden 3 3M
#34 Junichi Ueno 3 Shin-Etsu Handotai Co.
#35 Kaoru Ishii 3 Shin-Etsu Handotai Co.
#36 Kazuma Sekiya 3 Disco
#37 Kuniaki Yamaguchi 3 Ebara
#38 Negus B. Adefris 3 3M
#39 Oleg Boutorine 3 —
#40 Robert E. Davenport 3 Applied Materials
#41 Shih-Haur Shen 3 Applied Materials
#42 Steffen Wallendorf 3 Satisloh Ag
#43 Steven M. Zuniga 3 Applied Materials
#44 Veera Raghava Reddy Kakireddy 3 Applied Materials
#45 Yosuke KANAI 3 Fujikoshi Machinery
#46 Yuta Suzuki 3 Ebara
#47 Adam J. Meuler 2 3M
#48 Adrian Schoch 2 Robert Bosch Gmbh
#49 Akira Nakamura 2 Sony
#50 Alexandre Cormier 2 Satisloh Ag
#51 Amritanshu Sinha 2 Applied Materials
#52 Andreas Kaufmann 2 Robert Bosch Gmbh
#53 Andrzej Ernest Kuczek 2 RTX (Raytheon)
#54 Anthony Patrick Ventura 2 RTX (Raytheon)
#55 Ashavani Kumar 2 Applied Materials
#56 Axel H. Henning 2 Omax
#57 Binbin Zhang 2 Huawei
#58 Bo-I Lee 2 TSMC
#59 Brad Gelb 2 Essilor International
#60 Brian G. Koethe 2 3M
#61 Chunhung Chen 2 TSMC
#62 Chang Seong Kim 2 Ajou University Industry-Academic Cooperation
#63 Chin-Hsiang Lin 2 TSMC
#64 Chea Phann 2 Seagate Technology
#65 Damaris Davis 2 Western Digital Technologies
#66 Daniel T. Dovel 2 Darex
#67 David Masiukiewicz 2 RTX (Raytheon)
#68 David A. Nettleship 2 3M
#69 Daniel J. Schmidt 2 3M
#70 Darrick T. Smith 2 Hgst Netherlands, B.V.
#71 Daisuke Yokota 2 Hitachi
#72 Edward J. Gratrix 2 M Cubed Technologies
#73 Edwin C. Suarez 2 Applied Materials
#74 Edward J. Woo 2 3M
#75 Eric Lau 2 Applied Materials
#76 Evan Butcher 2 RTX (Raytheon)
#77 George C. Jacob 2 Rohm And Haas Electronic Materials Cmp Holdings
#78 Geoffrey I. Wilson 2 3M
#79 Glenn P. Gee 2 Western Digital Technologies
#80 Goran Hoglund 2 Kwh Mirka
#81 Go Nagayasu 2 Nhk Spring Co.
#82 Gunter Schneider 2 Schneider Gmbh & Co. Kg
#83 Hans Hede 2 Kwh Mirka
#84 He Hui Peng 2 TSMC
#85 Henry H. Thayer 2 RTX (Raytheon)
#86 Hiroshi Aono 2 Unknown
#87 Hideharu Muto 2 Makita
#88 Hideki Okada 2 Kyocera Document Solutions
#89 Hiroshi Sotozaki 2 Ebara
#90 Hicham M. Sougrati 2 Hgst Netherlands, B.V.
#91 Hung Chih Chen 2 Wistron
#92 Ingemar Carlsson 2 Applied Materials
#93 Itsuki Kobata 2 Ebara
#94 James Jeng-Jyi Hwang 2 TSMC
#95 Jeffrey Robert Stack 2 Rohm And Haas Electronic Materials Cmp Holdings
#96 John Nguyen 2 Rohm And Haas Electronic Materials Cmp Holdings
#97 Joe Ott 2 RTX (Raytheon)
#98 Joseph C. Rampone 2 Otis Elevator
#99 Kazutaka Shibuya 2 Enplas
#100 Kei-Wei Chen 2 TSMC

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Ebara 29
2 Applied Materials 23
3 3M 16
#4 TSMC 16
#5 Citic Dicastal Co. 11
#6 Disco 9
#7 Rohm And Haas Electronic Materials Cmp Holdings 9
#8 RTX (Raytheon) 9
#9 Shin-Etsu Handotai Co. 7
#10 Essilor International 6
#11 Satisloh Ag 5
#12 Samsung 5
#13 Fujikoshi Machinery 4
#14 Robert Bosch Gmbh 4
#15 Saint-Gobain Abrasifs 4
#16 Saint-Gobain Abrasives 4
#17 Seagate Technology 4
#18 Us Synthetic 4
#19 Baker Hughes Holdings 3
#20 Cabot Microelectronics 3
#21 Corning Incorporated 3
#22 Erwin Junker Maschinenfabrik Gmbh 3
#23 Makita 3
#24 Omax 3
#25 Sk Siltron Co. 3
#26 GE 3
#27 Apple 2
#28 Black & Decker 2
#29 Darex 2
#30 Hefei Xinsheng Optoelectronics Technology Co. 2
#31 Husqvarna Ab 2
#32 Kapp Werkzeugmaschinen Gmbh 2
#33 M Cubed Technologies 2
#34 National Oilwell Varco 2
#35 Nhk Spring Co. 2
#36 Niles Werkzeugmaschinen Gmbh 2
#37 Nitta Haas 2
#38 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs 2
#39 Saint-Gobain Ceramics & Plastics 2
#40 Schneider Gmbh & Co. Kg 2
#41 Sugino Machine Limited 2
#42 Sumco 2
#43 Taimei Chemicals Co. 2
#44 The Boeing 2
#45 Western Digital Technologies 2
#46 Xebec Technology Co. 2
#47 BOE 2
#48 AT&T 1
#49 A.L.M.T. 1
#50 Ant Applied New Technologies Ag 1
#51 Audi Ag 1
#52 Bando Chemical Industries 1
#53 Bando Kiko Co. 1
#54 Bell Helicopter Textron 1
#55 Bombardier Transportation Gmbh 1
#56 Campbell Hausfeld 1
#57 Carbon Revolution Limited 1
#58 Carl Zeiss Vision International Gmbh 1
#59 C. & E. Fein Gmbh 1
#60 Changsha University Of Science And Technology 1
#61 C.M.S. S.P.A. 1
#62 Compagnie Generale Des Etablissements Michelin 1
#63 Covidien Lp 1
#64 Delavan 1
#65 Diamond Innovations 1
#66 Dow Global Technologies 1
#67 Ehwa Diamond Industrial Co. 1
#68 Engineered Abrasives 1
#69 Erwin Junker Grinding Technology A.S. 1
#70 Essilor International (Compagnie Generale D'Optique) 1
#71 Fanuc 1
#72 Flow International 1
#73 Forel S.P.A. 1
#74 Gehring Technologies Gmbh + 1
#75 Gerd Eisenblaetter Gmbh 1
#76 Global Circuit Innovations Incorporated 1
#77 Globalfoundries 1
#78 Globalwafers Co. 1
#79 Graco Minnesota 1
#80 Gulfstream Aerospace 1
#81 Hegenscheidt-Mfd Gmbh & Co. Kg 1
#82 Hilti Aktiengesellschaft 1
#83 Hitachi 1
#84 Hitachi Chemical Company 1
#85 Honda Motor Co. 1
#86 Hotani Co. 1
#87 Hoya Lens Thailand 1
#88 Huaqiao University 1
#89 Huvitz Co. 1
#90 Hypertherm 1
#91 ITRI 1
#92 Infineon Technologies Ag 1
#93 International Test Solutions 1
#94 Iv Technologies Co. 1
#95 Jpw Industries 1
#96 Jtekt 1
#97 Karl Heesemann Maschinenfabrik Gmbh & Co. Kg 1
#98 Kinik 1
#99 Kla-Tencor 1
#100 Koki Holdings Co. 1