Patent Leaderboard
USPTO Patent Rankings
Data through Sept 30, 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
›
Rohm And Haas
Rohm And Haas
Rank
(2021):
#547
of
31,507
Top 2%
220
inventors
75
Patents 2021
Top Inventors at Rohm And Haas
2021
Showing
1–50
of
220
inventors
Rank
Name
Patents
1
Andrew Hejl
8
2
Antony K. Van Dyk
6
3
Jonathan DeRocher
5
3
Kimy Yeung
5
3
Tao Wang
5
#6
Fanwen Zeng
4
#6
James Keith Bardman
4
#6
James C. Bohling
4
#6
Jianming Xu
4
#6
Qingwei Zhang
4
#11
Alvin M. Maurice
3
#11
Dale C. Schmidt
3
#11
Eric C. Greyson
3
#11
Harpreet Singh
3
#11
Jinsuo Xu
3
#11
John J. Rabasco
3
#11
Ling Li
3
#11
Lin Wang
3
#11
Ralph C. Even
3
#11
Scott Backer
3
#11
Siyuan Jiang
3
#11
Theodore Tysak
3
#23
Alexander Katz
2
#23
Alexander Williamson
2
#23
Andrea C. Keenan
2
#23
Arkady L. Krasovskiy
2
#23
Benjamin Yezer
2
#23
Bong Hoon Kim
2
#23
Christopher D. Frick
2
#23
Charles R. Hegedus
2
#23
Charles J. Rand
2
#23
Claudia Hernandez
2
#23
David G. Kelly
2
#23
Daoshu Lin
2
#23
David L. Malotky
2
#23
Daniele Vinci
2
#23
Drew E. Williams
2
#23
Edward C. Greer
2
#23
Erin B. Vogel
2
#23
Hailan Guo
2
#23
Han Liu
2
#23
Hu Li
2
#23
Inna Shulman
2
#23
Jaebum Joo
2
#23
Jessica R. Levin
2
#23
Jie Wu
2
#23
Jieqian Zhang
2
#23
Jong Keun Park
2
#23
Jose Eduardo Ruiz
2
#23
Jodi A. Thomas
2
1
2
3
Next »
Related Companies
Bissell
77
National Institute Of Advanced Industrial Science And Technology
76
Kci Licensing
76
Dexerials
76
B/E Aerospace
76
Research & Business Foundation Sungkyunkwan University
75
Hitachi Construction Machinery Co.
75
Daimler Ag
75
British Telecommunications Public Limited
75