Machine tools Patent Leaders 2021

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: 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Patents per Year

Top Inventors

Rank ↑	Inventor ↕	Patents ↕	Primary Company ↕
1	Shinya Imamura	18	Sumitomo Electric Hardmetal
2	Anongsack Paseuth	16	Sumitomo Electric Hardmetal
3	Yasuki Kido	9	Sumitomo Electric Hardmetal
#4	Bernard J. Vogel	8	Illinois Tool Works
#5	David R. Sigler	8	General Motors
#6	Franz Haimer	8	Franz Haimer Maschinenbau Kg
#7	Junji Fujiwara	8	Panasonic
#8	Satoshi Ono	8	Toyama Chemical Co.
#9	Susumu Okuno	8	Sumitomo Electric Hardmetal
#10	Todd Earl Holverson	8	Illinois Tool Works
#11	Atsuhiro Kawamoto	7	Panasonic
#12	David Yang	7	General Motors
#13	Hiroyoshi Kawasaki	7	Senju Metal Industry Co.
#14	Joseph A. Daniel	7	Lincoln Global
#15	Keiji Nomaru	7	Disco
#16	Wu Tao	7	General Motors
#17	Blair E. Carlson	6	General Motors
#18	Gil Hecht	6	Iscar
#19	Hideaki Kanaoka	6	Sumitomo Electric Hardmetal
#20	Richard Martin Hutchison	6	Illinois Tool Works
#21	Steven R. Peters	6	Lincoln Global
#22	Alexander Heinrich	5	Infineon Technologies Ag
#23	Bruce Patrick Albrecht	5	Illinois Tool Works
#24	Christopher Hsu	5	Illinois Tool Works
#25	Daniel A. Bales	5	RTX (Raytheon)
#26	Justin Mamrak	5	GE
#27	Kouhei Yoshimura	5	Sumitomo Electric Hardmetal
#28	Masahiro Miyake	5	Kawasaki
#29	Masahiro Murota	5	Fanuc
#30	Masatoshi Nayuki	5	Disco
#31	MacKenzie Ryan Redding	5	GE
#32	Michael J. Karagoulis	5	General Motors
#33	Ryoji Ohashi	5	Kawasaki
#34	Takuya Fukuda	5	Hitachi
#35	William Thomas Carter	5	GE
#36	Yoshitaka MURAMATSU	5	Kawasaki
#37	Yuji HADANO	5	Disco
#38	Zuo Xu	5	Citic Dicastal Co.
#39	Andrew J. Henry	4	Illinois Tool Works
#40	Chris J. Roehl	4	Illinois Tool Works
#41	Craig Steven Knoener	4	Illinois Tool Works
#42	Dennis Sigl	4	Illinois Tool Works
#43	Dustin Wagner	4	Illinois Tool Works
#44	Frank Hohmann	4	—
#45	Haruyo Fukui	4	Sumitomo Electric Industries
#46	Hidetoshi Fujii	4	Ricoh Company
#47	Hiroaki Ishiguro	4	Amada Co.
#48	Hideyuki Miyake	4	Kabushiki Kaisha Toshiba
#49	Jörg Hohmann	4	Paul Hettich Gmbh & Co. Kg
#50	Kazuma Sekiya	4	Disco
#51	Koji Kuramochi	4	Sumitomo Electric Industries
#52	Mario Anthony Amata	4	Hobart Brothers
#53	Marc Lee Denis	4	Illinois Tool Works
#54	Mats Jonsson	4	Seco Tools Ab
#55	Masashi Sakaguchi	4	Sodick Co.
#56	Maria Bozena Winnicka	4	H.C. Starck
#57	Ning Yang	4	OPPO
#58	Peter Donald Mehn	4	Illinois Tool Works
#59	Robert R. Davidson	4	Illinois Tool Works
#60	Ruy Frota de Souza Filho	4	—
#61	Steven Edward Barhorst	4	Hobart Brothers
#62	Takashi Izumi	4	Fanuc
#63	William Joshua Becker	4	Illinois Tool Works
#64	Yasunobu Miyazaki	4	Nippon Steel
#65	Yoshiaki Morisada	4	Osaka University
#66	Yusuke Hirano	4	Tungaloy
#67	Yutaka Kobayashi	4	Hitachi
#68	Yuanfeng Luo	4	GE
#69	Alan J. Bookheimer	3	Kennametal
#70	Anthony Baratta	3	Baron Investments
#71	Andrew D. Nelson	3	Illinois Tool Works
#72	Andrew J. Schulz	3	Milwaukee Electric Tool
#73	Armin Stolzer	3	Keuro Besitz Gmbh & Co. Edv—Dienstleistungs Kg
#74	Bryan Dustin Marschke	3	Illinois Tool Works
#75	Bryan C. Ward	3	Milwaukee Electric Tool
#76	Byron Joseph Williams	3	Rai Strategic Holdings
#77	Christopher M. Spencer	3	Rai Strategic Holdings
#78	Daniel P. Fleming	3	Lincoln Global
#79	David Alan Stephenson	3	Ford
#80	David James Thierauf	3	Rai Strategic Holdings
#81	Dietmar Hechtle	3	Emuge-Werk Richard Glimpel Gmbh & Co. Kg Fabrik Fur Prazisionswerkzeuge
#82	Don Green	3	Rai Strategic Holdings
#83	Edward G. Beistle	3	Illinois Tool Works
#84	Edward A. Enyedy	3	Lincoln Global
#85	Edmund Riedl	3	Infineon Technologies Ag
#86	Essam B. Moustafa	3	King Abdulaziz University
#87	Fabian Bek	3	C. & E. Fein Gmbh
#88	Futoshi Takeshita	3	Sumitomo Electric Hardmetal
#89	Garrett Andrew Piech	3	Corning Incorporated
#90	Geoffrey R. Piller	3	Milwaukee Electric Tool
#91	Gyoowan Han	3	Samsung
#92	Hakan Carlberg	3	Sandvik Intellectual Property Ab
#93	Hannes Raudsepp	3	Esab Ab
#94	Hayaki Teramoto	3	Denso
#95	Helmut Glimpel	3	Emuge-Werk Richard Glimpel Gmbh & Co. Kg Fabrik Fur Prazisionswerkzeuge
#96	Hermann J. Stadtfeld	3	The Gleason Works
#97	Hisashi Hori	3	Nippon Light Metal Company
#98	Hiroomi Kobayashi	3	Toyota
#99	Hiroshi Matsuda	3	Canon
#100	Hiroshi Ohno	3	Kabushiki Kaisha Toshiba

Top Companies

Rank ↑	Company ↕	Patents ↕
1	Illinois Tool Works	99
2	Fanuc	49
3	Sumitomo Electric Hardmetal	40
#4	GE	39
#5	Milwaukee Electric Tool	35
#6	RTX (Raytheon)	27
#7	General Motors	25
#8	Disco	23
#9	The Boeing	23
#10	Mitsubishi Electric	22
#11	Toyota	22
#12	Kyocera	21
#13	Lincoln Global	21
#14	Senju Metal Industry Co.	20
#15	Panasonic	16
#16	Iscar	15
#17	Sandvik Intellectual Property Ab	15
#18	Tungaloy	14
#19	Kennametal	13
#20	Nippon Steel	13
#21	Robert Bosch Gmbh	13
#22	Unknown	13
#23	Ford	13
#24	Samsung	12
#25	Black & Decker	11
#26	Kawasaki	11
#27	Hyundai Motor	10
#28	Kia Motors	10
#29	Makino Milling Machine Co.	9
#30	Sumitomo Electric Industries	9
#31	Amada Co.	8
#32	Denso	8
#33	Franz Haimer Maschinenbau Kg	8
#34	Honda Motor Co.	8
#35	Jfe Steel	8
#36	Makita	8
#37	Moldino Tool Engineering	8
#38	Trumpf Werkzeugmaschinen Gmbh + Co. Kg	8
#39	Citic Dicastal Co.	7
#40	Esab Ab	7
#41	Guehring Kg	7
#42	Mitsubishi Materials	7
#43	Sodick Co.	7
#44	Caterpillar	7
#45	IBM	7
#46	Citizen Watch Co.	6
#47	Dalian University Of Technology	6
#48	Dmg Mori Co.	6
#49	Infineon Technologies Ag	6
#50	Ipg Photonics	6
#51	Kobe Steel	6
#52	Seco Tools Ab	6
#53	Siemens Aktiengesellschaft	6
#54	Trumpf Laser- Und Systemtechnik Gmbh	6
#55	C. & E. Fein Gmbh	5
#56	Citizen Machinery Co.	5
#57	Corning Incorporated	5
#58	Emuge-Werk Richard Glimpel Gmbh & Co. Kg Fabrik Fur Prazisionswerkzeuge	5
#59	Fuji	5
#60	Hakko	5
#61	Hamilton Sundstrand	5
#62	Hilti Aktiengesellschaft	5
#63	Hobart Brothers	5
#64	Hypertherm	5
#65	Jtekt	5
#66	Koki Holdings Co.	5
#67	Okuma	5
#68	Osg	5
#69	Precitec Gmbh & Co. Kg	5
#70	Canon	5
#71	LG	5
#72	Apple	4
#73	Applied Materials	4
#74	Apex Brands	4
#75	BMW	4
#76	Bystronic Laser Ag	4
#77	Electro Scientific Industries	4
#78	Gebr. Heller Maschinenfabrik Gmbh	4
#79	Gildemeister Italiana S.P.A.	4
#80	H.C. Starck	4
#81	Kabushiki Kaisha Toshiba	4
#82	Kitagawa Ironworks Co.	4
#83	Komatsu	4
#84	Korloy	4
#85	Kulicke And Soffa Industries	4
#86	Mahle International Gmbh	4
#87	Mitsubishi Aluminum Co.	4
#88	Ngk Spark Plug Co.	4
#89	Osaka University	4
#90	Rolls-Royce Plc	4
#91	Siemens Energy	4
#92	Siemens Energy Global	4
#93	Tti (Macao Commercial Offshore) Limited	4
#94	BOE	4
#95	3D Systems	3
#96	Abb Schweiz Ag	3
#97	Agc	3
#98	Alpha Assembly Solutions	3
#99	Baker Hughes Holdings	3
#100	Baron Investments	3

Machine tools Patent Leaders in 2021 2021

Patents per Year

Top Inventors

Top Companies