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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Machine tools

Machine tools Patent Leaders in 2020 2020

Primary CPC class B23 · 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 2,285 patents in 2019.peak 2,2851996: 1,012 patents19961997: 1,040 patents1998: 1,387 patents1999: 1,479 patents19992000: 1,532 patents2001: 1,605 patents2002: 1,497 patents20022003: 1,633 patents2004: 1,491 patents2005: 1,190 patents20052006: 1,315 patents2007: 1,134 patents2008: 1,017 patents20082009: 951 patents2010: 1,283 patents2011: 1,246 patents20112012: 1,484 patents2013: 1,617 patents2014: 1,827 patents20142015: 1,843 patents2016: 1,837 patents2017: 1,998 patents20172018: 1,930 patents2019: 2,285 patents2020: 2,206 patents20202021: 1,934 patents2022: 2,068 patents2023: 1,799 patents20232024: 1,899 patents2025: 1,912 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Blair E. Carlson 13 General Motors
2 Christopher Hsu 13 Illinois Tool Works
3 David R. Sigler 12 General Motors
#4 Atsuhiro Kawamoto 10 Panasonic
#5 Hiroyoshi Kawasaki 10 Senju Metal Industry Co.
#6 Steven R. Peters 10 Lincoln Global
#7 Junji Fujiwara 9 Panasonic
#8 Takashi Izumi 9 Fanuc
#9 Felix Martin Gerhard Roerig 8 GE
#10 Dahv A. V. Kliner 7 Nlight
#11 Kazuya Hirata 7 Disco
#12 Quinn William Schartner 7 Illinois Tool Works
#13 Weidong Liu 7 Citic Dicastal Co.
#14 Yan Cui 7 GE
#15 Bruce Patrick Albrecht 6 Illinois Tool Works
#16 David Yang 6 General Motors
#17 Huiying Liu 6 Citic Dicastal Co.
#18 Joseph A. Daniel 6 Lincoln Global
#19 Kazuhiko Sannomiya 6 Citizen Machinery Co.
#20 Rinsei Ikeda 6 Jfe Steel
#21 Roger L. Farrow 6 Nlight
#22 Takefumi Nakako 6 Nisshin Steel Co.
#23 Tohru Okada 6 Nippon Steel
#24 Wolfram Ehling 6 Arcelormittal France
#25 Azeddine Chergui 5 Thyssenkrupp Steel Europe Ag
#26 Bruce J. Chantry 5 Lincoln Global
#27 Daizo Oda 5 Nippon Micrometal
#28 Eric Laliberte 5 Robert Bosch Gmbh
#29 Franz Haimer 5 Franz Haimer Maschinenbau Kg
#30 James Lee Uecker 5 Illinois Tool Works
#31 Jens Ketelaer 5 Sauer Gmbh
#32 Kaito Matsui 5 Panasonic
#33 Masaharu Amano 5 Komatsu
#34 Marc Lee Denis 5 Illinois Tool Works
#35 Michael Evans Graham 5 GE
#36 Noriyuki Matsuoka 5 Yamaichi Electronics Co.
#37 Rene Vierstraete 5 Arcelormittal France
#38 Richard Martin Hutchison 5 Illinois Tool Works
#39 Roy C. Coakley 5 Illinois Tool Works
#40 Satoru Kukino 5 Sumitomo Electric Hardmetal
#41 Srikanth Chandrudu Kottilingam 5 GE
#42 Steven Edward Barhorst 5 Hobart Brothers
#43 Tatsuo Hashimoto 5 Mitsubishi Materials
#44 Takaichi Nakaya 5 Citizen Watch Co.
#45 Takashi Yamada 5 Kabushiki Kaisha Toshiba
#46 Tomohiro Uno 5 Nippon Micrometal
#47 Tsuyoshi Ogami 5 Mitsubishi Materials
#48 William T. Matthews 5 Lincoln Global
#49 Andrew Frolov 4 Robert Bosch Gmbh
#50 Armin Stolzer 4 Keuro Besitz Gmbh & Co. Edv—Dienstleistungs Kg
#51 Badri Narayanan 4 Lincoln Global
#52 Brian Lee Tollison 4 GE
#53 Chikaumi Sawanishi 4 Jfe Steel
#54 Craig Steven Knoener 4 Illinois Tool Works
#55 Daniel B. Miller 4 Preco
#56 Daisuke Soma 4 Senju Metal Industry Co.
#57 Dechao Lin 4 GE
#58 Erik Miller 4 Illinois Tool Works
#59 Francis Schmit 4 Arcelormittal
#60 Hermann J. Stadtfeld 4 The Gleason Works
#61 Hiroshi Asada 4 Nisshin Steel Co.
#62 Hiroshi Matsuda 4 Canon
#63 Hirosato NISHIZAWA 4 Tungaloy
#64 James G. Schroth 4 General Motors
#65 Jake Zwayer 4 Illinois Tool Works
#66 Kaichi Tsuruta 4 Senju Metal Industry Co.
#67 Kenneth R. Pierce 4 Illinois Tool Works
#68 Leonid Boris Sharivker 4 Kennametal
#69 Matthias Hoebel 4 Alstom Technology
#70 Michael W. Gearhart 4 Illinois Tool Works
#71 Michael J. Karagoulis 4 General Motors
#72 Natsuki Ichimiya 4 Mitsubishi Materials
#73 Paul H. Stasiewicz 4 Sawstop Holding
#74 Qingdong Yin 4 Arcelormittal
#75 Sergei Vladimir Boulakhov 4 Kennametal
#76 Seiji Furusako 4 Nippon Steel
#77 Shimon Athad 4 Iscar
#78 Shigeki Tanaka 4 Sharp Kabushiki Kaisha
#79 Stephen F. Gass 4 Sd3
#80 Takayoshi Matsumoto 4 Fanuc
#81 Takahiro Roppongi 4 Senju Metal Industry Co.
#82 Terry L. Timmons 4 Milwaukee Electric Tool
#83 Thomas Etter 4 GE
#84 Tomoyuki Furuta 4 Fanuc
#85 Todd Earl Holverson 4 Illinois Tool Works
#86 Todd E. Kooken 4 Lincoln Global
#87 Yasunaga Itoh 4 Uacj
#88 Yasuyuki Kanada 4 Sumitomo Electric Hardmetal
#89 Yasunobu Miyazaki 4 Nippon Steel
#90 Yoshihito IKEDA 4 Kyocera
#91 Yoshitomo Teraoka 4 Hakko
#92 Alexander M. Rubenchik 3 Lawrence Livermore National Security
#93 Amberlee S. Haselhuhn 3 General Motors
#94 Anthony Van Bergen Salsich 3 Illinois Tool Works
#95 Andrew Lee Trimmer 3 GE
#96 Archana Kashikar 3 Arevo
#97 Bruce D. Hansen 3 Sikorsky Aircraft
#98 Brian Taylor 3 Robert Bosch Gmbh
#99 Brian Victor 3 Nlight
#100 Christoph Gey 3 Kennametal

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Illinois Tool Works 99
2 Fanuc 85
3 GE 59
#4 Lincoln Global 44
#5 The Boeing 31
#6 RTX (Raytheon) 29
#7 Kennametal 28
#8 Robert Bosch Gmbh 28
#9 Tungaloy 27
#10 Disco 26
#11 General Motors 26
#12 Panasonic 26
#13 Honda Motor Co. 25
#14 Milwaukee Electric Tool 23
#15 Kyocera 21
#16 Toyota 19
#17 Sumitomo Electric Hardmetal 17
#18 Black & Decker 16
#19 Mitsubishi Electric 16
#20 Nippon Steel 16
#21 Iscar 15
#22 Robert Bosch Tool 15
#23 Kobe Steel 14
#24 Rolls-Royce Plc 14
#25 Senju Metal Industry Co. 14
#26 Hypertherm 13
#27 Mitsubishi Materials 13
#28 Citic Dicastal Co. 12
#29 Dmg Mori Co. 12
#30 Sandvik Intellectual Property Ab 12
#31 Trumpf Werkzeugmaschinen Gmbh + Co. Kg 12
#32 Makita 11
#33 Ford 11
#34 Samsung 11
#35 BOE 10
#36 Makino Milling Machine Co. 9
#37 Nlight 9
#38 Esab Ab 8
#39 Hartmetall-Werkzeugfabrik Paul Horn Gmbh 8
#40 Hilti Aktiengesellschaft 8
#41 Hobart Brothers 8
#42 Koki Holdings Co. 8
#43 Safran Aircraft Engines 8
#44 Sumitomo Electric Industries 8
#45 Amada Co. 7
#46 Citizen Machinery Co. 7
#47 Citizen Watch Co. 7
#48 Ipg Photonics 7
#49 Jfe Steel 7
#50 Kia Motors 7
#51 Nippon Steel Nisshin Co. 7
#52 Technology Research Association For Future Additive Manufacturing 7
#53 The Hillman Group 7
#54 Thyssenkrupp Ag 7
#55 Unknown 7
#56 Applied Materials 6
#57 Fronius International Gmbh 6
#58 Guehring Kg 6
#59 Hamamatsu Photonics K.K. 6
#60 Hamilton Sundstrand 6
#61 Hyundai Motor 6
#62 Komatsu 6
#63 Liebherr-Verzahntechnik Gmbh 6
#64 Ntn 6
#65 Sawstop Holding 6
#66 Thyssenkrupp Steel Europe Ag 6
#67 Uacj 6
#68 LG 6
#69 Apple 5
#70 Arcam Ab 5
#71 Baker Hughes Holdings 5
#72 BMW 5
#73 Crc-Evans Pipeline International 5
#74 Dalian University Of Technology 5
#75 Denso 5
#76 Franz Haimer Maschinenbau Kg 5
#77 Hitachi 5
#78 Jtekt 5
#79 Magna International 5
#80 Nippon Micrometal 5
#81 Nippon Steel Chemical 5
#82 Okuma 5
#83 Seagate Technology 5
#84 Trumpf Laser- Und Systemtechnik Gmbh 5
#85 Caterpillar 5
#86 Honeywell 5
#87 IBM 5
#88 Arcelormittal 4
#89 Bystronic Laser Ag 4
#90 Concept Laser, Gmbh 4
#91 Corning Incorporated 4
#92 Daihen 4
#93 Dongguan University Of Technology 4
#94 Fraunhofer 4
#95 Hakko 4
#96 Halliburton Energy Services 4
#97 Yaskawa Electric 4
#98 Kanefusa Kabushiki Kaisha 4
#99 Keuro Besitz Gmbh & Co. Edv—Dienstleistungs Kg 4
#100 Kitagawa Ironworks Co. 4