Patent Leaderboard
USPTO Patent Rankings
Data through Dec 31, 2025
Search
Companies
Inventors
Cities
States
Inventor 500
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
›
Coulter
CO
Coulter
— 100 Patents
Rank
(All Time):
#6,913
of
105,732
Top 7%
279
inventors
100
Patents All Time
Patents per Year
Patents granted per year, 1981 to 2002
Bar chart with a peak of 15 patents in 1995.
peak 15
1981: 1 patents
1981
1984: 1 patents
1985: 3 patents
1985
1986: 1 patents
1987: 2 patents
1987
1988: 2 patents
1989: 7 patents
1989
1991: 5 patents
1992: 7 patents
1992
1993: 14 patents
1994: 6 patents
1994
1995: 15 patents
1996: 8 patents
1996
1997: 13 patents
1998: 10 patents
1998
1999: 2 patents
2000: 1 patents
2000
2001: 1 patents
2002: 1 patents
2002
Top Inventors at Coulter
All Time
Showing
1–50
of
279
inventors
Rank
Name
Patents
1
Olavi Siiman
23
1
Thomas Russell
15
3
Kenneth H. Kortright
13
#4
Wallace H. Coulter
11
#5
Alexander Burshteyn
17
#5
Carlos M. Rodriguez
14
#5
Ravinder K. Gupta
13
#8
Timothy J. Fischer
9
#9
Carole Young
18
#9
David E. Hofheinz
7
#9
John A. Maples
10
#9
Ronald Paul
8
#13
John D. Hollinger
6
#13
James H. Carter
7
#15
Gerald E. Jaffe
6
#15
Melissa J. Stiglitz
5
#15
Frank J. Lucas
9
#18
Constance M. Hajek
5
#18
Michael Elliott
6
#18
Nancy R. Naylor
4
#18
Paulette Smariga
4
#18
Robert Auer
4
#18
Santos E. Vargas
6
#18
Stephen F. Healy, Jr.
4
#18
Nicholas Parker
5
#26
Gary Toedter
3
#26
James N. Hoskinson
3
#26
Jorge A. Quintana
3
#26
Norma Sue Kenyon
3
#26
Patricia A. Roth
5
#26
Raul I. Pedroso
3
#26
Roberto Del Valle
4
#26
Robert H. Raynor
6
#26
Steven E. Bott
3
#26
Wade E. Bolton
4
#26
Wei-Hsin Hou
3
#26
Manuel Calvo
5
#26
Kyriakos Christou
4
#39
Candie S. Stoner
2
#39
Charles R. Shambaugh
2
#39
Cynthia G. Healy
2
#39
Edward O'Connell
2
#39
Etzer Ketant
2
#39
Gregory M. Butchko
2
#39
James C. Wood
2
#39
Kenneth D. Fraser
8
#39
Kenneth A. Lindblom
4
#39
Mark Lee Shenkin
2
#39
Peter Taylor
2
#39
Richard Alan WENMAN
2
1
2
3
Next »
Most Valuable Patents
Patent
Est. Value
Year
Method and apparatus for screening obscured or partially obscured cells
$15M
2000
Cyanide-free reagent and method for hemoglobin determination and leukocyte differentitation
$9M
1998
Assay reagent
$8M
1998
Preserved, non-infectious control cells prepared by the modulation or modification of normal leukocytes
$8M
1999
Method for determining activity of enzymes in metabolically active whole cells
$7M
1999
All 100 most valuable US patents →
Related Companies
Holland
100
Bottomline Technologies
100
Tonal Systems
100
Webasto-Werk W. Baier Gmbh &
100
Ici Australia Limited
100
Japan As Represented By Director General Of The Agency Of Industrial Science And Technology
100
Kelley Company
100
Pharmacia & Upjohn S.P.A.
100
Hybridon
100