Electrolysis and electroplating Patent Leaders

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	Steven T. Mayer	102	Novellus Systems
2	Takayuki Shimamune	64	Permelec Electrode
3	Jonathan D. Reid	63	Novellus Systems
#4	Vittorio de Nora	62	Moltech Invent S.A.
#5	Gregory J. Wilson	55	Applied Materials
#6	Bryan L. Buckalew	53	Novellus Systems
#7	Kyle M. Hanson	52	Semitool
#8	Paul R. McHugh	50	Applied Materials
#9	Yoshinori Nishiki	49	Permelec Electrode
#10	Jerry J. Kaczur	47	Olin
#11	Akihiko Ono	46	Kabushiki Kaisha Toshiba
#12	Satoshi Mikoshiba	46	Kabushiki Kaisha Toshiba
#13	Ryota Kitagawa	43	Kabushiki Kaisha Toshiba
#14	Yuki Kudo	43	Kabushiki Kaisha Toshiba
#15	Masashi Shimoyama	41	Ebara
#16	Jun Tamura	40	Kabushiki Kaisha Toshiba
#17	Cyprian Emeka Uzoh	39	Invensas
#18	David W. Cawlfield	39	Olin
#19	Charles L. Arvin	38	IBM
#20	Jean-Jacques Duruz	38	Moltech Invent S.A.
#21	Robert Rash	38	Novellus Systems
#22	Adam L. Cohen	36	Microfabrica
#23	Shantinath Ghongadi	36	Novellus Systems
#24	Zhian He	35	Novellus Systems
#25	Hariklia Deligianni	34	IBM
#26	Kenneth E. Woodard, Jr.	34	Olin
#27	Bulent M. Basol	33	Solopower
#28	Daniel J. Woodruff	33	Semitool
#29	Jumpei Fujikata	33	Ebara
#30	Ryan J. Gilliam	33	Calera
#31	Igor V. Kadija	32	Olin
#32	Mizuki Nagai	32	Ebara
#33	Masakazu Yamagiwa	31	Kabushiki Kaisha Toshiba
#34	Richard N. Beaver	31	—
#35	Yoshitsune Sugano	31	Kabushiki Kaisha Toshiba
#36	Andreas Bulan	30	Bayer Materialscience Ag
#37	William G. Herbert	30	Xerox
#38	Antonio Nidola	29	Diamond Shamrock Technologies S.A.
#39	David W. Porter	28	Novellus Systems
#40	Kenneth L. Hardee	28	Eltech Systems
#41	Siba P. Ray	28	Aluminum Company Of America
#42	Anthony B. LaConti	27	Giner Electrochemical Systems
#43	Oliver J. Murphy	27	Lynntech
#44	Stuart Licht	27	C2Cnt
#45	Dennis R. Smalley	26	Microfabrica
#46	Jingbin Feng	26	Novellus Systems
#47	Scot P. Sandoval	26	Freeport-Mcmoran
#48	James A. Curran	25	Apple
#49	John L. Klocke	25	Applied Materials
#50	Kyle Teamey	25	Liquid Light
#51	Emily Barton Cole	24	Liquid Light
#52	Gregory J. E. Morris	23	—
#53	Hsin-Yung Lin	23	Unknown
#54	Klaus Tomantschger	23	Integran Technologies
#55	Lubomyr T. Romankiw	23	IBM
#56	Sai Bhavaraju	22	Ceramatec
#57	Vincent Paneccasio, Jr.	22	Enthone Gmbh
#58	Yezdi Dordi	22	Lam Research
#59	Joseph A. Abys	21	AT&T
#60	Kiyotaka Nakaya	21	Mitsubishi Materials
#61	Koji Nakazawa	21	Honda Motor Co.
#62	Maria Anna Rzeznik	21	Rohm And Haas Electronic Materials
#63	Michael S. Lockard	21	Microfabrica
#64	Morton S. Kircher	21	Olin
#65	Siegfried Birkle	21	Siemens Aktiengesellschaft
#66	Thomas A. Ponnuswamy	21	Novellus Systems
#67	Yoshio Oda	21	Asahi Glass Co.
#68	Yuki Sato	21	Toyota
#69	Fred I. Nobel	20	Learonal
#70	Gino Palumbo	20	Integran Technologies
#71	Homayoun Talieh	20	Nutool
#72	J. David Genders	20	Nemaska Lithium
#73	Masashige Tatebe	20	Apple
#74	Rainer Weber	20	Bayer Healthcare
#75	Ronald L. Dotson	20	Olin
#76	Xinghua Liu	20	Alcoa
#77	Yasuo Nakajima	20	Furukawa Electric Co.
#78	Zuhra I. Niazimbetova	20	Rohm And Haas Electronic Materials
#79	Hiep D. Dang	19	—
#80	James L. Willit	19	Ge-Hitachi Nuclear Energy Americas
#81	Jean Bachot	19	Rhone-Poulenc Chimie
#82	Johann Gehring	19	Siemens Aktiengesellschaft
#83	Jonathan McCrea	19	Integran Technologies
#84	Kendra P. Kuhl	19	Twelve Benefit
#85	Peter Woltering	19	Uhdenora S.P.A.
#86	Evan E. Patton	18	Novellus Systems
#87	Fritz Gestermann	18	Bayer Healthcare
#88	John R. Pimlott	18	—
#89	Lynne M. Ernes	18	Eltech Systems
#90	Motoki Hiraoka	18	Toyota
#91	Placido M. Spaziante	18	Oronzio Denora Impianti Elettrochimici S.P.A.
#92	Scott Blanchet	18	Nuvera Fuel Cells
#93	Etosha R. Cave	17	Twelve Benefit
#94	Frederick Dean Wilmot	17	Novellus Systems
#95	Hui Wang	17	Acm Research (Shanghai)
#96	Jun Takeuchi	17	Honda Motor Co.
#97	Junichiro Yoshioka	17	Ebara
#98	Lee Peng Chua	17	Novellus Systems
#99	Mark R. Jaworowski	17	RTX (Raytheon)
#100	Narayanappa Sivasankar	17	Liquid Light

Top Companies

Rank ↑	Company ↕	Patents ↕
1	E.I. Du Pont De Nemours And	250
2	Ebara	213
3	IBM	211
#4	Olin	196
#5	Applied Materials	176
#6	Novellus Systems	138
#7	Basf Se	119
#8	Atotech Deutschland	118
#9	Unknown	115
#10	RTX (Raytheon)	112
#11	Rohm And Haas Electronic Materials	107
#12	Lam Research	104
#13	Aluminum Company Of America	102
#14	Permelec Electrode	101
#15	Honda Motor Co.	99
#16	Ppg Industries	99
#17	GE	98
#18	Apple	87
#19	Eltech Systems	87
#20	Nippon Steel	87
#21	Kabushiki Kaisha Toshiba	86
#22	Toyota	83
#23	The Boeing	78
#24	TSMC	73
#25	Siemens Aktiengesellschaft	71
#26	Alcoa	66
#27	Semitool	64
#28	Hoechst Gmbh	63
#29	CEA	62
#30	Diamond Shamrock	59
#31	Swiss Aluminium	59
#32	Industrie De Nora S.P.A.	58
#33	Alcan International Limited	57
#34	ICI	57
#35	Moltech Invent S.A.	57
#36	General Motors	56
#37	Panasonic	56
#38	Aluminum Pechiney	55
#39	Kawasaki Steel	54
#40	Asahi Glass Co.	52
#41	University of California	52
#42	Chlorine Engineers Corp.	51
#43	Fujitsu Limited	50
#44	Samsung	49
#45	Shipley Company, L.L.C.	46
#46	Oronzio Denora Impianti Elettrochimici S.P.A.	45
#47	KFUPM	44
#48	US Dept of Energy	44
#49	Canon	44
#50	Jx Nippon Mining & Metals	43
#51	US Air Force	43
#52	AT&T	41
#53	MIT	40
#54	Mitsubishi Materials	40
#55	Toyo Kohan Co.	40
#56	Bayer Healthcare	39
#57	C.Uyemura & Co.	39
#58	Learonal	39
#59	Xerox	39
#60	3M	38
#61	Microfabrica	38
#62	Omi International	37
#63	Asahi Kasei Kogyo Co.	35
#64	Honeywell	35
#65	Micron	35
#66	Mitsui Mining & Smelting Co.	34
#67	Occidental Chemical	34
#68	Ceramatec	33
#69	ITRI	33
#70	Caltech	32
#71	Hitachi	31
#72	Mitsubishi Electric	31
#73	Norsk Hydro Asa	31
#74	Intel	31
#75	Bell Telephone Laboratories	30
#76	CNRS	28
#77	Freeport-Mcmoran	28
#78	Hooker Chemicals & Plastics	28
#79	Lawrence Livermore National Security	28
#80	Eastman Kodak	27
#81	Liquid Light	27
#82	Metallgesellschaft Ag	27
#83	M&T Chemicals	27
#84	Rca	27
#85	Sumitomo Electric Industries	27
#86	Electroplating Engineers Of Japan Limited	26
#87	Enthone Gmbh	26
#88	Murata Manufacturing Co.	26
#89	Technic	26
#90	AMD	25
#91	Degussa Ag	25
#92	De Nora Permelec	25
#93	Fujifilm	25
#94	Macdermid Enthone	25
#95	Modumetal	25
#96	Monsanto Technology	25
#97	Nkk Co.	25
#98	Texas Instruments	25
#99	Furukawa Electric Co.	24
#100	Outokumpu Oyj	24

Electrolysis and electroplating Patent Leaders All Time

Patents per Year

Top Inventors

Top Companies