Metal casting 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	Douglas Gerard Konitzer	7	GE
2	Brian David Przeslawski	6	GE
3	Dongwang Yang	6	Wuhan University Of Technology
#4	Fan Fu	6	Wuhan University Of Technology
#5	Gang Zheng	6	Huawei
#6	Gregory Terrence Garay	6	GE
#7	John Joseph Marcin	6	RTX (Raytheon)
#8	Qingjie Zhang	6	Wuhan University Of Technology
#9	Qiang Zhang	6	Ericsson
#10	Tao Liang	6	Wuhan University Of Technology
#11	Xin Cheng	6	Wuhan University Of Technology
#12	Xianli Su	6	Wuhan University Of Technology
#13	Xinfeng Tang	6	Wuhan University Of Technology
#14	Paul V. Cooper	5	Molten Metal Equipment Innovations
#15	Tingfan Pang	5	GE
#16	Tracy A. Propheter-Hinckley	5	RTX (Raytheon)
#17	Vincent D. Fontana	5	Molten Metal Equipment Innovations
#18	James Tilsley Auxier	4	RTX (Raytheon)
#19	John H. Martin	4	Hrl Laboratories
#20	Ryusuke Tsubota	4	Daihen
#21	William Thomas Carter	4	GE
#22	Yohei Oka	4	Daihen
#23	Adam F. Gross	3	Hrl Laboratories
#24	Akira Okamoto	3	Megachips
#25	Alban Dubach	3	Swatch Group Research And Development
#26	Antonio Bernerd Martinez	3	Divergent Technologies
#27	Andrew Sherman	3	Terves
#28	David A. Bryce	3	Clene Nanomedicine
#29	Donald G. Godfrey	3	Honeywell
#30	Futoshi Kuniyoshi	3	Hitachi
#31	Gaozhan Zhao	3	No.59 Institute Of China Ordnance Industry
#32	Guillaume Fribourg	3	Safran Aircraft Engines
#33	Harold Bradley Rees	3	Nucor
#34	Hisao Nagai	3	Panasonic
#35	Ikuo Kataoka	3	Marelli Cabin Comfort Japan
#36	Jianquan Tao	3	No.59 Institute Of China Ordnance Industry
#37	Jørn Johansen	3	Disa Industries A/S
#38	Junichi Tanaka	3	Sony
#39	Kevin Robert Czinger	3	Divergent Technologies
#40	Mario P. Bochiechio	3	RTX (Raytheon)
#41	Masato Maede	3	Panasonic
#42	Mark C. Morris	3	Honeywell
#43	Mark G. Mortenson	3	Gr Intellectual Reserve
#44	Makoto Murakami	3	Seiko Epson
#45	Michael C. Brown	3	GE
#46	Michael Cole	3	GE
#47	Michael Golfetto	3	—
#48	Ming Li	3	No.59 Institute Of China Ordnance Industry
#49	Naohisa Kamiyama	3	Kabushiki Kaisha Toshiba
#50	Norichika Aramaki	3	Jfe Steel
#51	Per Larsen	3	Disa Industries A/S
#52	Qiang Chen	3	Hon Hai Precision Ind. Co.
#53	Sergey Mironets	3	RTX (Raytheon)
#54	Shinya Sato	3	Advantest
#55	Steven J. Bullied	3	RTX (Raytheon)
#56	Takaaki Ikari	3	Nippon Light Metal Company
#57	Takafumi Okuma	3	Panasonic
#58	Tetsuzo Nishimura	3	Marelli Cabin Comfort Japan
#59	Tobias A. Schaedler	3	Hrl Laboratories
#60	William Louis Wentland	3	Hamilton Sundstrand
#61	Xi Yang	3	GE
#62	Yuanyuan Wan	3	No.59 Institute Of China Ordnance Industry
#63	Yves Winkler	3	Swatch Group Research And Development
#64	Zhiwei Huang	3	Johnson Controls Technology
#65	Zhihui Xing	3	No.59 Institute Of China Ordnance Industry
#66	Aaron Preston	2	Desktop Metal
#67	Adolf Hetke	2	—
#68	Alexandre Auger	2	Tekna Plasma Systems
#69	Alois Boindecker	2	Fill Gesellschaft M.B.H.
#70	Alan J. Jacobsen	2	Hrl Laboratories
#71	Alexander Madinger	2	Hamilton Sundstrand
#72	Alexander M. Rubenchik	2	Lawrence Livermore National Security
#73	Andy Szuromi	2	Honeywell
#74	Armin DUGUM	2	Magna Bdw Technologies Gmbh
#75	Brian Doud	2	Powdermet
#76	Broc William TenHouten	2	Divergent Technologies
#77	Brennan Yahata	2	Hrl Laboratories
#78	Carrie Bartkowiak	2	Kennametal
#79	Christoffer Bay	2	Disa Industries A/S
#80	Christian Dam	2	Disa Industries A/S
#81	Christoper Raymond Hanslits	2	GE
#82	Christian Lustig	2	Hüttenes-Albertus Chemische Werke Gesellschaft Mit Beschränkter Haftung
#83	Chukwubuikem Marcel Okoli	2	Divergent Technologies
#84	Christian Werner	2	Cinna
#85	Cheng Zhang	2	Florida International University Board Of Trustees
#86	Craig Shaber	2	Wagstaff
#87	David Ulrich Furrer	2	RTX (Raytheon)
#88	Dale A. Gerard	2	General Motors
#89	David Jarvis	2	Hiptec As
#90	Daniel Endecott Osgood	2	GE
#91	David Kyle Pierce	2	Gr Intellectual Reserve
#92	David Price	2	The Lubrizol
#93	David Edward Schick	2	GE
#94	David Brian TenHouten	2	Divergent Technologies
#95	Dheepa Srinivasan	2	GE
#96	Diana Giulietti	2	Hamilton Sundstrand
#97	Dilip M. Shah	2	RTX (Raytheon)
#98	Douglas C. Hofmann	2	Caltech
#99	Dustin W. Davis	2	RTX (Raytheon)
#100	Eberhard Ernst	2	Borealis Ag

Top Companies

Rank ↑	Company ↕	Patents ↕
1	RTX (Raytheon)	33
2	GE	25
3	Hitachi	11
#4	Sintokogio	10
#5	Toyota	9
#6	Hyundai Motor	8
#7	Kia Motors	8
#8	Safran Aircraft Engines	8
#9	Panasonic	8
#10	Hamilton Sundstrand	6
#11	Nippon Steel	6
#12	Wuhan University Of Technology	6
#13	Honeywell	6
#14	Baker Hughes Holdings	5
#15	Honda Motor Co.	5
#16	Molten Metal Equipment Innovations	5
#17	Novelis	5
#18	Rolls-Royce Plc	5
#19	The Boeing	5
#20	Unknown	5
#21	BMW	4
#22	Daihen	4
#23	Desktop Metal	4
#24	Divergent Technologies	4
#25	Hrl Laboratories	4
#26	Hüttenes-Albertus Chemische Werke Gesellschaft Mit Beschränkter Haftung	4
#27	Kennametal	4
#28	Lawrence Livermore National Security	4
#29	Nucor	4
#30	Refractory Intellectual Property	4
#31	Seiko Epson	4
#32	Showa Denko K.K.	4
#33	Sodick Co.	4
#34	Sumitomo Electric Sintered Alloy	4
#35	Swatch Group Research And Development	4
#36	University Of Science And Technology Beijing	4
#37	General Motors	4
#38	Caltech	3
#39	Dalian University Of Technology	3
#40	Danieli & C. Officine Meccaniche S.P.A.	3
#41	Disa Industries A/S	3
#42	HP	3
#43	Jfe Steel	3
#44	Marelli Cabin Comfort Japan	3
#45	Mitsubishi Electric	3
#46	Nemak, S.A.B. De C.V.	3
#47	Norsk Hydro Asa	3
#48	Posco Co.	3
#49	Schlumberger Technology	3
#50	Stratasys	3
#51	Vesuvius U S A	3
#52	Applied Materials	2
#53	6K	2
#54	Abb Schweiz Ag	2
#55	Albemarle Germany Gmbh	2
#56	Arcelormittal	2
#57	Baoshan Iron & Steel Co.	2
#58	Basf Se	2
#59	Brunswick	2
#60	Callaway Golf	2
#61	Cambrios Film Solutons	2
#62	Chemex Foundry Solutions Gmbh	2
#63	Compagnie Generale Des Etablissements Michelin	2
#64	Delavan	2
#65	Emerson Climate Technologies	2
#66	Fill Gesellschaft M.B.H.	2
#67	Fukuda Metal Foil & Powder Co.	2
#68	Gkn Sinter Metals Engineering Gmbh	2
#69	Hammond Group	2
#70	Heraeus Deutschland	2
#71	Hiptec As	2
#72	Hunter Fourndry Machinery	2
#73	Imerys Usa	2
#74	Keystone Powdered Metal	2
#75	Kobe Steel	2
#76	Krosakiharima	2
#77	Linde Gmbh	2
#78	Made In Space	2
#79	Magna Bdw Technologies Gmbh	2
#80	Mahle International Gmbh	2
#81	Max-Planck-Gesellschaft Zur Föderung Der Wissenschaften E.V.	2
#82	Mazda Motor	2
#83	Miba Sinter Austria Gmbh	2
#84	No.59 Institute Of China Ordnance Industry	2
#85	Northwestern University	2
#86	Osaka Research Institute Of Industrial Science And Technoloy	2
#87	Plansee Se	2
#88	Siemens Energy Global	2
#89	Sms Group Gmbh	2
#90	Sumitomo Electric Industries	2
#91	Tanaka Kikinzoku Kogyo K.K.	2
#92	Tekna Plasma Systems	2
#93	Tenneco Automotive Operating Company	2
#94	Terves	2
#95	NASA	2
#96	Thyssenkrupp Ag	2
#97	Wagstaff	2
#98	Wirtz Manufacturing Company	2
#99	3M	1
#100	5N Plus	1

Metal casting Patent Leaders in 2021 2021

Patents per Year

Top Inventors

Top Companies