Patent Leaderboard
USPTO Patent Rankings
Data through Dec 31, 2025
Search
Companies
Inventors
Cities
States
All Time
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
Home
›
Companies
›
Union Carbide
UC
Union Carbide
— 2,079 Patents
Rank
(All Time):
#412
of
106,120
Top 1%
1,402
inventors
2,079
Patents All Time
Top Inventors at Union Carbide
All Time
Showing
1–50
of
1,402
inventors
Rank
Name
Patents
1
Themistocles D. J. D'Silva
35
2
Joseph V. Koleske
34
3
Michael J. Keogh
33
#4
Edith M. Flanigen
32
#5
Brent M. T. Lok
31
#6
Frederick J. Karol
30
#7
Lloyd M. Robeson
28
#8
David R. Bryant
26
#9
Hugh C. Gardner
24
#9
Louis M. Maresca
24
#11
Bernard Kanner
23
#11
Jule A. Rabo
23
#13
George L. Brode
21
#14
Andrija Fuderer
20
#14
Ernst Billig
20
#16
Harry Cheung
19
#17
Anthony G. Abatjoglou
18
#17
Thomas N. Wheeler
18
#19
Joseph A. Nausedas
16
#19
John D. Sherman
16
#21
Markus Matzner
15
#21
Regis J. Pellet
15
#21
Stephen T. Wilson
15
#24
Ewald A. Kamp
14
#24
Gary N. Long
14
#24
Herman S. Chiu
14
#24
Peter K. Coughlin
14
#24
Robert J. Knopf
14
#24
Vytautas Kupcikevicius
14
#30
Enrico J. Pepe
13
#30
Errol D. Goddard
13
#30
George L. Goeke
13
#30
Kenneth L. Hoy
13
#30
Leonard Kaplan
13
#30
Stuart J. Kurtz
13
#30
Thomas C. Williams
13
#37
George T. Kwiatkowski
12
#37
Jeffert John Nowobilski
12
#37
Linda A. Domeier
12
#37
Steven W. Kaiser
12
#37
William J. Bartley
12
#37
You-Ling Fan
12
#43
Arun Acharya
11
#43
Bonita K. Marcus
11
#43
George A. Salensky
11
#43
John F. Pelton
11
#43
Oliver W. Smith
11
#43
Raymond V. Sara
11
#49
Burkhard E. Wagner
10
#49
Chien-Chung Chao
10
1
2
3
Next »
Related Companies
Interdigital Technology
2,110
Walmart Apollo
2,110
Henkel Ag & Co. Kgaa
2,101
Japan Aviation Electronics Industry, Limited
2,086
Palo Alto Research Center Incorporated
2,083
Siemens Medical Solutions Usa
2,075
Council Of Scientific And Industrial Research
2,071
Hrl Laboratories
2,067
Infineon Technologies Austria Ag
2,065