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
›
Oncogen
ON
Oncogen
— 55 Patents
Rank
(All Time):
#12,127
of
106,120
Top 15%
50
inventors
55
Patents All Time
Top Inventors at Oncogen
All Time
Showing
1–50
of
50
inventors
Rank
Name
Patents
1
Karl E. Hellstrom
20
2
Ingegerd Hellstrom
19
3
Hans Marquardt
15
#4
George J. Todaro
13
#5
Mohammed Shoyab
12
#6
Joseph P. Brown
9
#6
Peter S. Linsley
9
#8
Anthony F. Purchio
8
#9
Daniel R. Twardzik
7
#10
Diane Horn
6
#11
Joyce M. Zarling
5
#12
Marcia B. Hanson
4
#12
Thomas J. Brown
4
#12
Timothy M. Rose
4
#15
Gregory D. Plowman
3
#15
H. Perry Fell
3
#15
Mario N. Lioubin
3
#15
Shiu-Lok Hu
3
#19
Charles D. Estin
2
#19
Edward Clark
2
#19
Efraim Lavie
2
#19
Henry Perry Fell, Jr.
2
#19
Jeffrey A. Ledbetter
2
#19
Linda Madisen
2
#19
Margit Ann Gayle
2
#19
Maria S. Kahn
2
#19
Sridhar Pennathur
2
#28
A. Gregory Bruce
1
#28
Dennis M. Brown
1
#28
Edward E. Luck
1
#28
George J. Schreiber
1
#28
James G. Bradley
1
#28
Janet V. Johnston
1
#28
Kim Folger Bruce
1
#28
Kim R. Folger Bruce
1
#28
Martha S. Hayden
1
#28
Najma Malik
1
#28
Nancy Webb
1
#28
Paul Gladstone
1
#28
Peter D. Senter
1
#28
Peter Su
1
#28
Susan Yarnold
1
#28
Tatsuhiko Ikeda
1
#28
Victor K. Lee
1
#28
Vicki Lynn McDonald
1
#28
Vincent W. Ochs
1
#28
Yoshitaka Yoneyama
1
#28
Ingegerd E. Hellestrom
1
#28
Vera Brankovan
1
#28
Donna F. Beaton
1
Related Companies
Aichi Steel Works
55
Ohio Electronic Engravers
55
Adac Laboratories
55
Cobbs Manufacturing
55
Phase Metrics
55
Spectra-Physics Scanning Systems
55
Thomas J. Lipton Co., Division Of Conopco
55
Waferscale Integration
55
Hoechst Ceramtec Ag
55