Glass 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	Charlene Marie Smith	150	Corning Incorporated
2	George Halsey Beall	137	Corning Incorporated
3	Timothy Michael Gross	129	Corning Incorporated
#4	Matthew John Dejneka	115	Corning Incorporated
#5	Dana Craig Bookbinder	97	Corning Incorporated
#6	Adam James Ellison	91	Corning Incorporated
#7	Robert Michael Morena	88	Corning Incorporated
#8	Nicholas Francis Borrelli	85	Corning Incorporated
#9	Xiaoju Guo	84	Corning Incorporated
#10	Bruce Gardiner Aitken	77	Corning Incorporated
#11	Scott V. Thomsen	75	Guardian Industries
#12	Pushkar Tandon	71	Corning Incorporated
#13	Qiang Fu	68	Corning Incorporated
#14	Vijayen S. Veerasamy	66	Guardian Industries
#15	Rostislav Vatchev Roussev	64	Corning Incorporated
#16	John Christopher Mauro	63	Corning Incorporated
#17	Xuelu Zou	61	Hoya
#18	Sinue Gomez	59	Corning Incorporated
#19	Philip J. Lingle	58	Guardian Industries
#20	Ljerka Ukrainczyk	57	Corning Incorporated
#21	Naoyuki Goto	55	Ohara
#22	Akihiro Koyama	54	Nippon Sheet Glass Company, Limited
#23	Jean-Marc Lemmer	53	Guardian Industries
#24	Wolfram Höland	53	Ivoclar Vivadent Ag
#25	Yuhui Jin	53	Corning Incorporated
#26	Marie Jacqueline Monique Comte	51	Corning Incorporated
#27	Volker Rheinberger	51	Ivoclar Vivadent Ag
#28	Anton Dietrich	50	Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.)
#29	Bernd Disteldorf	50	Guardian Industries
#30	Guangli Hu	50	Corning Incorporated
#31	Richard Blacker	49	Guardian Industries
#32	Larry J. Shelestak	48	Ppg Industries Ohio
#33	Muhammad Imran	48	Guardian Industries
#34	Christian Ritzberger	47	Ivoclar Vivadent Ag
#35	Peter Joseph Lezzi	47	Corning Incorporated
#36	Timothy James Kiczenski	47	Corning Incorporated
#37	Allan Mark Fredholm	45	Corning Incorporated
#38	Friedrich Siebers	45	Schott Ag
#39	Marcel Schweiger	44	Ivoclar Vivadent Ag
#40	Klaus Hartig	43	Cardinal Cg
#41	Hideki Kawai	42	Minolta Co.
#42	Kenneth Edward Hrdina	42	Corning Incorporated
#43	Brent Boyce	41	Guardian Glass
#44	Hans-Werner Kuster	41	Saint-Gobain Glass France
#45	Robert G. Frank	41	Ppg Industries
#46	Stephan Lvovich Logunov	41	Corning Incorporated
#47	Steven Alvin Tietje	41	Corning Incorporated
#48	James J. Finley	40	Ppg Industries Ohio
#49	Kazutaka Ono	40	Agc
#50	Ksenia A. Landa	40	Guardian Industries
#51	Peter Brix	40	Schott Ag
#52	Akio Koike	39	Asahi Glass Co.
#53	Harold A. McMaster	39	Glasstech
#54	Yukihito Nagashima	39	Nippon Sheet Glass Company, Limited
#55	George E. Sakoske	38	Ferro
#56	Mattheus Jacobus Nicolaas Van Stralen	38	Draka Comteq B.V.
#57	Shandon Dee Hart	38	Corning Incorporated
#58	Igor Milicevic	37	Draka Comteq B.V.
#59	Jasbinder S. Sanghera	37	US Air Force
#60	Leonid Landa	37	Guardian Industries
#61	Ming-Jun Li	37	Corning Incorporated
#62	Steven Edward DeMartino	37	Corning Incorporated
#63	Thierry Luc Alain Dannoux	37	Corning Incorporated
#64	Eiichi Uriu	36	Panasonic
#65	Ishwar D. Aggarwal	36	US Air Force
#66	Jaymin Amin	36	Corning Incorporated
#67	Mark A. Propster	36	Owens-Corning Fiberglas
#68	Natesan Venkataraman	36	Corning Incorporated
#69	Tasuku Ishibashi	36	Panasonic
#70	Yasuhiro Fujiwara	36	Hoya
#71	Aaron Morgan Huber	35	Johns Manville
#72	Alexander Mikhailovich Streltsov	35	Corning Incorporated
#73	Heather Debra Boek	35	Corning Incorporated
#74	Hiroyuki Abe	35	Japan Display
#75	Hong Li	35	Infineon Technologies Ag
#76	Karl William Koch, III	35	Corning Incorporated
#77	Mark William Charbonneau	35	Johns Manville
#78	Robert Anthony Schaut	35	Corning Incorporated
#79	Hiroo Kanamori	34	Sumitomo Electric Industries
#80	Lisa Anne Moore	34	Corning Incorporated
#81	Linda Ruth Pinckney	34	Corning Incorporated
#82	Steven Bruce Dawes	34	Corning Incorporated
#83	Steven J. Pinkerton	34	Emhart Glass S.A.
#84	Vitor Marino Schneider	34	Corning Incorporated
#85	David B. Nitschke	33	Glasstech
#86	Dean M. Nitschke	33	Glasstech
#87	James Joseph Price	33	Corning Incorporated
#88	Melinda Ann Drake	33	Corning Incorporated
#89	Stephen Seng	33	Owens-Corning Fiberglas
#90	Zhongzhi Tang	33	Corning Incorporated
#91	Annette J. Krisko	32	Cardinal Cg
#92	Dale Robert Powers	32	Corning Incorporated
#93	James P. Thiel	32	Ppg Industries Ohio
#94	Marcus Frank	32	Guardian Industries
#95	Masataka Nonaka	32	Panasonic
#96	Pascale Oram	32	Corning Incorporated
#97	Silke Wolff	32	Schott Ag
#98	Uwe Kolberg	32	Schott Ag
#99	Gilbert De Angelis	31	Corning Incorporated
#100	Grzegorz Stachowiak	31	Guardian Industries

Top Companies

Rank ↑	Company ↕	Patents ↕
1	Corning Incorporated	2,356
2	Ppg Industries	508
3	Schott Ag	473
#4	Asahi Glass Co.	471
#5	Owens-Corning Fiberglas	399
#6	Hoya	373
#7	Sumitomo Electric Industries	358
#8	Guardian Industries	350
#9	Nippon Electric Glass Co.	333
#10	Corning Glass Works	310
#11	Nippon Sheet Glass Company, Limited	296
#12	Saint-Gobain Glass France	270
#13	Owens-Brockway Glass Container	245
#14	Saint-Gobain Vitrage	243
#15	Samsung	220
#16	Heraeus Quarzglas	210
#17	Shin-Etsu Chemical Co.	202
#18	Agc	201
#19	Emhart	173
#20	Johns Manville	169
#21	AT&T	157
#22	Ppg Industries Ohio	152
#23	Ohara	141
#24	Glasstech	139
#25	Central Glass Company, Limited	117
#26	U.S. Philips	117
#27	Emhart Glass S.A.	115
#28	LG	115
#29	Unknown	112
#30	Schott Glas	107
#31	Pilkington Group Limited	106
#32	Furukawa Electric Co.	104
#33	Agc Glass Europe	99
#34	Schott Glaswerke	99
#35	Guardian Glass	98
#36	Ford	98
#37	3M	97
#38	Libbey-Owens-Ford	96
#39	Owens-Illinois	95
#40	Fujikura	92
#41	Canon	83
#42	E.I. Du Pont De Nemours And	81
#43	Shin-Etsu Quartz Products Co.	81
#44	Alcatel	77
#45	Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.)	76
#46	Ferro	76
#47	Panasonic	75
#48	Cardinal Cg	71
#49	US Air Force	71
#50	Draka Comteq B.V.	70
#51	GE	70
#52	Saint-Gobain Isover	66
#53	Glaverbel	65
#54	Apple	62
#55	Emhart Glass Machinery Investments	59
#56	Ivoclar Vivadent Ag	57
#57	Hitachi	55
#58	RTX (Raytheon)	48
#59	Siemens Aktiengesellschaft	47
#60	Murata Manufacturing Co.	45
#61	Nikon	45
#62	Nitto Boseki Co.	45
#63	Isover Saint-Gobain	44
#64	IBM	43
#65	Cdgm Glass Co.	41
#66	Ocv Intellectual Capital	41
#67	Rockwool International A/S	40
#68	Fitel Usa	39
#69	US Dept of Energy	38
#70	Minolta Co.	37
#71	Japan Super Quartz	36
#72	Eurokera	34
#73	L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude	34
#74	Bayer Healthcare	33
#75	Nippon Telegraph And Telephone Public	33
#76	Owens Corning Intellectual Capital	33
#77	Saint-Gobain Industries	33
#78	Ngk Insulators	32
#79	Tamglass Ltd. Oy	32
#80	Avanstrate	31
#81	Praxair Technology	30
#82	Sumita Optical Glass	30
#83	University of California	30
#84	Vitro Flat Glass	30
#85	Eurokera S.N.C.	29
#86	Foxconn	29
#87	Ofs Fitel	29
#88	Beteiligungen Sorg Gmbh & Co. Kg	28
#89	View	27
#90	Honeywell	27
#91	Applied Materials	26
#92	Guardian Europe S.A.R.L.	26
#93	Konica Minolta Opto	26
#94	Bell Telephone Laboratories	25
#95	Jushi Group Co.	25
#96	Mitsubishi Diamond Industrial Co.	25
#97	Ball	24
#98	Bottero S.P.A.	24
#99	Philips	24
#100	Prysmian S.P.A.	24

Glass Patent Leaders All Time

Patents per Year

Top Inventors

Top Companies