Metal casting Patent Leaders 2019

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	Thomas N. Slavens	8	RTX (Raytheon)
2	Steven J. Bullied	7	RTX (Raytheon)
3	Grant O. Cook, III	6	Halliburton Energy Services
#4	Carl R. Verner	5	RTX (Raytheon)
#5	Changhai Li	5	Citic Dicastal Co.
#6	James Tilsley Auxier	5	RTX (Raytheon)
#7	John Joseph Marcin	5	RTX (Raytheon)
#8	Mario P. Bochiechio	5	RTX (Raytheon)
#9	Richard Remo Fontana	5	Desktop Metal
#10	Shin-ichi Heguri	5	Sumitomo Metal Mining Co.
#11	Clayton A. Ownby	4	Halliburton Energy Services
#12	Dilip M. Shah	4	RTX (Raytheon)
#13	Garrett T. Olsen	4	Halliburton Energy Services
#14	Georg Schlick	4	Mtu Aero Engines Ag
#15	Gyo Hyun Hwang	4	LG
#16	Hideki Ohara	4	Sumitomo Metal Mining Co.
#17	James Albert Tallman	4	GE
#18	Jeffrey G. Thomas	4	—
#19	Jun Yeon Cho	4	LG
#20	Kazuyuki Takaishi	4	Sumitomo Metal Mining Co.
#21	Kun-Szu Kao	4	—
#22	Kwanghyun Kim	4	LG
#23	Masahito Hanao	4	Sumitomo Metal Industries
#24	Osamu Ikeda	4	Canon
#25	Sang Hoon Kim	4	Samsung
#26	Srikanth Chandrudu Kottilingam	4	GE
#27	Tatsuya Masuta	4	Nissan Motor Co.
#28	Tomoaki Yoneyama	4	Sumitomo Metal Mining Co.
#29	Tracy A. Propheter-Hinckley	4	RTX (Raytheon)
#30	Yohei Kudo	4	Sumitomo Metal Mining Co.
#31	Yoshitomo Ozaki	4	Sumitomo Metal Mining Co.
#32	Akihiro Yamanaka	3	Canon
#33	Alan D. Cetel	3	RTX (Raytheon)
#34	Anastasios John Hart	3	MIT
#35	Andreas Jakimov	3	Mtu Aero Engines Ag
#36	Carl Schubeler	3	Nissan Motor Co.
#37	Christopher A. Schuh	3	MIT
#38	Diana Giulietti	3	Hamilton Sundstrand
#39	Eiichi Kobayashi	3	Jsr
#40	Eric Karlen	3	Hamilton Sundstrand
#41	Hidetaka Oguma	3	Mitsubishi Electric
#42	Ikuo Okada	3	Mitsubishi Electric
#43	Jonah Samuel Myerberg	3	Desktop Metal
#44	Jun Kato	3	Fujitsu Limited
#45	Junhao Zhang	3	Sumitomo Metal Mining Co.
#46	Kazutaka Mori	3	Hitachi
#47	Kazumichi Yanagisawa	3	Sumitomo Metal Mining Co.
#48	Kenji Taguchi	3	Sanyo Electric Co.
#49	Kiley James Versluys	3	Hamilton Sundstrand
#50	Koichi Kita	3	Mitsubishi Materials
#51	Lin Wang	3	Hitachi
#52	Matthew David Verminski	3	Desktop Metal
#53	Michael Andrew Gibson	3	Desktop Metal
#54	Naoki Tajima	3	Konica
#55	Paul V. Cooper	3	Molten Metal Equipment Innovations
#56	Ricardo Fulop	3	Desktop Metal
#57	Shinichi Tsuchiya	3	Yazaki
#58	Toru Iwanaga	3	Hitachi
#59	Toshihiko Saiwai	3	Mitsubishi Materials
#60	Yan Cui	3	GE
#61	Yet-Ming Chiang	3	MIT
#62	Yongning Wang	3	Citic Dicastal Co.
#63	Zhihua Zhu	3	Citic Dicastal Co.
#64	Aaron T. Nardi	2	RTX (Raytheon)
#65	Adam R. Loukus	2	Rel
#66	Aloisio Nelmo Klein	2	Universidade Federal De Santa Catarina
#67	Alexander Ladewig	2	Mtu Aero Engines Ag
#68	Albert Rabinovich	2	RTX (Raytheon)
#69	Artemy Krasilnikov	2	Sms Group Gmbh
#70	Archie Lee Swanner, JR.	2	GE
#71	Atsushi Takata	2	Riso Kagaku
#72	Benjamin Peters	2	MIT
#73	Bradford A. Cowles	2	RTX (Raytheon)
#74	Brian Lee Tollison	2	GE
#75	Carey E. Wilkinson	2	The Boeing
#76	Cesar Marco Serrano	2	Loramendi, S. Coop.
#77	Cheol-Ung Lee	2	Hyundai Motor
#78	Christof Volks	2	Foseco International Limited
#79	Chengqun Yan	2	Amsted Rail Company
#80	Colette O. Fennessy	2	Hamilton Sundstrand
#81	Cristiano Binder	2	Universidade Federal De Santa Catarina
#82	David Ulrich Furrer	2	RTX (Raytheon)
#83	Dale L. Huber	2	Sandia
#84	Daisuke Kodama	2	Kao
#85	Daniel Quach	2	Snecma
#86	Dirk Lieftucht	2	Sms Group Gmbh
#87	Douglas Gerard Konitzer	2	GE
#88	Emanuel M. Sachs	2	Desktop Metal
#89	Eric Alan Estill	2	GE
#90	Erik L. Gotlund	2	Nevis Industries
#91	Fabrizio Lerda	2	—
#92	Felix Max Fanghänel	2	Sms Group Gmbh
#93	Gajawalli V. Srinivasan	2	RTX (Raytheon)
#94	Gerard R. Thiel	2	University Of Northern Iowa Research Foundation
#95	Giichirou Okamura	2	Nissan Motor Co.
#96	Gregory Terrence Garay	2	GE
#97	Gregory Thomas Mark	2	Markforged
#98	Herbert Chidsey Roberts	2	GE
#99	Hisashi Harada	2	Mitsubishi Electric
#100	Hitoshi Kubo	2	Tanaka Kikinzoku Kogyo K.K.

Top Companies

Rank ↑	Company ↕	Patents ↕
1	RTX (Raytheon)	47
2	GE	27
3	Rolls-Royce Plc	10
#4	Hitachi	8
#5	Nippon Steel & Sumitomo Metal	8
#6	Desktop Metal	7
#7	Halliburton Energy Services	7
#8	Nissan Motor Co.	7
#9	Toyota	7
#10	Citic Dicastal Co.	6
#11	Safran Aircraft Engines	6
#12	Sumitomo Metal Mining Co.	6
#13	The Boeing	6
#14	Honda Motor Co.	5
#15	Mtu Aero Engines Ag	5
#16	Sintokogio	5
#17	Delavan	4
#18	Mitsubishi Materials	4
#19	Nucor	4
#20	LG	4
#21	AMD	3
#22	Abb Schweiz Ag	3
#23	Brunswick	3
#24	Denso	3
#25	Dowa Holdings Co.	3
#26	Hitachi Chemical Company	3
#27	Hyundai Motor	3
#28	Jfe Steel	3
#29	Kennametal	3
#30	Krosakiharima	3
#31	Mahle International Gmbh	3
#32	Molten Metal Equipment Innovations	3
#33	Primetals Technologies Austria Gmbh	3
#34	Refractory Intellectual Property	3
#35	Siemens Aktiengesellschaft	3
#36	Toshiba Kikai	3
#37	Unknown	3
#38	Vesuvius U S A	3
#39	Honeywell	3
#40	Panasonic	3
#41	Amsted Rail Company	2
#42	Ask Chemicals Gmbh	2
#43	Baker Hughes Holdings	2
#44	Basf Se	2
#45	Dowa Electronics Materials Co.	2
#46	Dresser-Rand	2
#47	Fisher Controls International	2
#48	Foseco International Limited	2
#49	Fujiwa Denki Co.	2
#50	Hamilton Sundstrand	2
#51	Jp Steel Plantech	2
#52	Korea Electronics Technology Institute	2
#53	Markforged	2
#54	MIT	2
#55	Mitsubishi Electric	2
#56	Mitsui Mining & Smelting Co.	2
#57	National Technology & Engineering Solutions Of Sandia	2
#58	Nevis Industries	2
#59	Posco Co.	2
#60	Purdue Research Foundation	2
#61	Seiko Epson	2
#62	Shinagawa Refractories Co.	2
#63	Sms Group Gmbh	2
#64	Tanaka Kikinzoku Kogyo K.K.	2
#65	Technology Research Association For Future Additive Manufacturing	2
#66	Thyssenkrupp Ag	2
#67	Thyssenkrupp Steel Europe Ag	2
#68	Universidade Federal De Santa Catarina	2
#69	University-Industry Cooperation Group Of Kyung Hee University	2
#70	University Of Northern Iowa Research Foundation	2
#71	BOE	2
#72	Caterpillar	2
#73	General Motors	2
#74	Amazon	1
#75	Adeka	1
#76	Aerojet Rocketdyne Of De	1
#77	Airbus Operations Limited	1
#78	Aktiebolaget Skf	1
#79	Ald Vacuum Technologies Gmbh	1
#80	Amann Girrbach Ag	1
#81	Anvil International	1
#82	Applied Nanoparticle Laboratory	1
#83	Asahi Yukizai	1
#84	A School Corporation Kansai University	1
#85	Autoliv Development Ab	1
#86	Baoshan Iron & Steel Co.	1
#87	Beijing Boe Optoelectronics Technology Co.	1
#88	Beijing University Of Chemical Technology	1
#89	Belenos Clean Power Holding Ag	1
#90	Böllhoff Verbindungstechnik Gmbh	1
#91	Cambridge Enterprise Limited	1
#92	Cambrios Film Solutons	1
#93	Carbo Ceramics	1
#94	Cellmobility	1
#95	Central South University	1
#96	CNRS	1
#97	Ceratizit Austria Gesellschaft M.B.H.	1
#98	Champ Tech Optical (Foshan)	1
#99	Clarkson University	1
#100	Clene Nanomedicine	1

Metal casting Patent Leaders in 2019 2019

Patents per Year

Top Inventors

Top Companies