Layered products Patent Leaders | Patent Leaderboard

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	Herbert Peiffer	106	Mitsubishi Polyester Film Gmbh
2	Ursula Murschall	60	Hoechst Gmbh
3	Mutsuo Akao	57	Fujitsu Limited
#4	Jun Lu	51	Soliton
#5	Gunter Schloegl	48	Hoechst Gmbh
#6	Henry G. Schirmer	48	W.R. Grace & Co.-Conn.
#7	Gottfried Hilkert	45	Mitsubishi Polyester Film Gmbh
#8	Guenther Crass	45	Hoechst Gmbh
#9	Walter B. Mueller	41	W.R. Grace & Co.-Conn.
#10	Tatsuya Iwamoto	38	Sekisui Chemical Co.
#11	Govindarajan Natarajan	36	IBM
#12	Kazuhiko Nakayama	36	Sekisui Chemical Co.
#13	Stephen J. Vicik	35	Viskase Companies
#14	Lothar Bothe	34	Hoechst Gmbh
#15	Aristotelis Karagiannis	33	Soliton
#16	Donald E. Weder	31	Southpac Trust International
#17	Göran Ziegler	31	Valinge Innovation Ab
#18	Darko Pervan	30	Valinge Innovation Ab
#19	Solomon Bekele	30	Cryovac
#20	Yuusuke Oota	30	Sekisui Chemical Co.
#21	Richard Allen Hayes	29	E.I. Du Pont De Nemours And
#22	Michael Tod Morman	28	Kimberly-Clark Worldwide
#23	Paul Dennis Trokhan	28	The Procter & Gamble
#24	Jeffrey Glen Sheehan	27	The Procter & Gamble
#25	Shou-Shan Fan	27	Foxconn
#26	Stanley Lustig	27	Viskase Companies
#27	Charles Anthony Smith	26	E.I. Du Pont De Nemours And
#28	Niall R. Lynam	26	Donnelly
#29	Takuya Nakazono	26	Nitto Denko
#30	Ann Louise McCormack	25	Kimberly-Clark Worldwide
#31	John Joseph Curro	25	The Procter & Gamble
#32	Michael A. Johnson	24	3M
#33	Ole-Bendt Rasmussen	24	Unknown
#34	Robert J. Blemberg	24	American National Can
#35	Robert P. Bourdelais	24	Eastman Kodak
#36	Wenjie Chen	24	Soliton
#37	Yohsuke Haraguchi	24	Ricoh Company
#38	Andrew J. Ouderkirk	23	3M
#39	Juichi Fukatani	23	Sekisui Chemical Co.
#40	Keunsuk P. Chang	23	Toray Plastics (America)
#41	Melvin S. Freedman	23	Avery Dennison
#42	Michael G. Borchardt	23	The Glad Products
#43	Michael Labrot	23	Saint-Gobain Glass France
#44	Per Just Andersen	23	E. Khashoggi Industries
#45	Simon K. Hodson	23	E. Khashoggi Industries
#46	Steven Lee Barnholtz	23	The Procter & Gamble
#47	Stephen A. Johnson	23	3M
#48	Timothy Michael Gross	23	Corning Incorporated
#49	Tomohiro Furuhashi	23	Ricoh Company
#50	Wataru Takahashi	23	Canon
#51	Dan-Cheng Kong	22	ExxonMobil
#52	Gautam P. Shah	22	Cryovac
#53	Michael Gomer Stelljes	22	The Procter & Gamble
#54	Robert Haines Turner	22	The Procter & Gamble
#55	Takeshi Murashige	22	Nitto Denko
#56	Daisuke Nakajima	21	Sekisui Chemical Co.
#57	Dennis L. Krueger	21	3M
#58	Drew V. Speer	21	Cryovac
#59	John A. Wheatley	21	3M
#60	Junichi Inagaki	21	Nitto Denko
#61	Pang-Chia Lu	21	ExxonMobil
#62	Peter T. Aylward	21	Eastman Kodak
#63	Rajen M. Patel	21	Dow Global Technologies
#64	Robert T. Dorsey	21	The Glad Products
#65	Thomas Michael Cleary	21	Corning Incorporated
#66	Yasuyuki Izu	21	Sekisui Chemical Co.
#67	Ashok Bhatnagar	20	Honeywell
#68	Atsuo Tanaka	20	Toyota
#69	Charles E. Gibbons	20	International Paper
#70	Keith L. Truog	20	Avery Dennison
#71	Peter Frisk	20	Tetra Laval Holdings & Finance S.A.
#72	Robert M. Japp	20	IBM
#73	Tzong In Yeh	20	Agit Global Ip Holdings
#74	W. Novis Smith	20	Toxco
#75	Yunwa W. Cheung	20	Dow Global Technologies
#76	Allan A. Whillock	19	International Paper
#77	Anoop Agrawal	19	Donnelly
#78	Christopher Michael Young	19	The Procter & Gamble
#79	James Roy Denbow	19	The Procter & Gamble
#80	Kai-Li Jiang	19	Foxconn
#81	Larry A. Rosenbaum	19	Baxter International
#82	Marcel KLEIN	19	Saint-Gobain Glass France
#83	Michael Benton Free	19	3M
#84	Michael Donald Suer	19	The Procter & Gamble
#85	Nicolas Cardoso Mazzola	19	Dow Global Technologies
#86	Robert T. Rozbicki	19	View
#87	Shinya MONMA	19	Ricoh Company
#88	Timothy James Klawitter	19	The Procter & Gamble
#89	Uwe Keller	19	Kuraray Europe Gmbh
#90	Charles S. Voeltzel	18	Ppg Industries Ohio
#91	Dimitri Zafiroglu	18	E.I. Du Pont De Nemours And
#92	Jeffrey M. Schuetz	18	Viskase Companies
#93	John R. Wagner, Jr.	18	ExxonMobil
#94	Marvin R. Havens	18	W.R. Grace & Co.-Conn.
#95	Masahiro Kimura	18	Toray Industries
#96	Matthias Konrad	18	Mitsubishi Polyester Film Gmbh
#97	Mark S. Wilenski	18	The Boeing
#98	Martin B. Wolk	18	3M
#99	Michael F. Weber	18	3M
#100	Peiguang Zhou	18	Kimberly-Clark Worldwide

Top Companies

Rank ↑	Company ↕	Patents ↕
1	3M	687
2	E.I. Du Pont De Nemours And	627
3	The Boeing	495
#4	Samsung	417
#5	Kimberly-Clark Worldwide	399
#6	ExxonMobil	354
#7	The Procter & Gamble	282
#8	Saint-Gobain Glass France	263
#9	GE	237
#10	Sekisui Chemical Co.	224
#11	Nitto Denko	217
#12	Dow Global Technologies	196
#13	Corning Incorporated	189
#14	Unknown	188
#15	LG	188
#16	Toray Industries	180
#17	Cryovac	175
#18	Kuraray Co.	174
#19	Dai Nippon Printing Co.	172
#20	Hoechst Gmbh	151
#21	Avery Dennison	149
#22	W.R. Grace & Co.-Conn.	145
#23	IBM	145
#24	Fujitsu Limited	134
#25	Sumitomo Chemical	133
#26	Honeywell	128
#27	Soliton	126
#28	Saint-Gobain Vitrage	118
#29	Mitsubishi Gas Chemical Company	112
#30	Basf Se	110
#31	Mitsubishi Polyester Film Gmbh	110
#32	Toyo Seikan Co.	109
#33	BOE	109
#34	Fujifilm	108
#35	Eastman Kodak	105
#36	Tetra Laval Holdings & Finance S.A.	105
#37	Panasonic	101
#38	Johns Manville	93
#39	Toppan Printing Co.	92
#40	Agc	90
#41	RTX (Raytheon)	88
#42	Teijin Limited	84
#43	Milliken &	83
#44	W.L. Gore & Associates Gmbh	83
#45	General Motors	79
#46	Apple	78
#47	Toray Plastics (America)	76
#48	Mitsubishi Chemical	75
#49	Nippon Steel	75
#50	Canon	75
#51	Asahi Glass Co.	74
#52	Mitsui Chemicals	74
#53	Mitsui Petrochemical Industries	74
#54	Sumitomo Electric Industries	74
#55	Ford	74
#56	Honda Motor Co.	71
#57	Monsanto Technology	70
#58	Ppg Industries	70
#59	Bridgestone	69
#60	ITRI	69
#61	Ppg Industries Ohio	69
#62	American Can	67
#63	Foxconn	67
#64	Murata Manufacturing Co.	67
#65	Owens-Corning Fiberglas	67
#66	Toyota	67
#67	Bayer Healthcare	65
#68	International Paper	65
#69	Mitsubishi Electric	63
#70	NASA	63
#71	NVIDIA	62
#72	Toyoda Gosei Co.	60
#73	Lintec	59
#74	Daikin Industries	58
#75	Toyo Kohan Co.	58
#76	US Air Force	57
#77	Ube Industries	56
#78	Unicharm	56
#79	Wolff Walsrode Ag	56
#80	Ricoh Company	54
#81	Airbus Operations Limited	52
#82	Hitachi Chemical Company	51
#83	Ngk Insulators	51
#84	Toyo Boseki Kabushiki Kaisha	51
#85	Sony	51
#86	Hitachi	50
#87	Nissan Motor Co.	49
#88	Pilkington Group Limited	49
#89	Nike	49
#90	The Mead	47
#91	Toyobo Co.	47
#92	Arkema France	46
#93	Certainteed	46
#94	Idemitsu Petrochemical Co.	46
#95	Viskase Companies	46
#96	Kaneka	45
#97	Nippon Sheet Glass Company, Limited	45
#98	W. R. Grace &	45
#99	Hexcel	44
#100	Zephyros	44

Layered products Patent Leaders All Time

Patents per Year

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