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
›
Circon
CI
Circon
— 71 Patents
Rank
(All Time):
#9,649
of
106,120
Top 10%
53
inventors
71
Patents All Time
Top Inventors at Circon
All Time
Showing
1–50
of
53
inventors
Rank
Name
Patents
1
Richard P. Muller
15
2
Benedetto Grossi
14
3
Frank D'Amelio
13
#4
Gregory S. Konstorum
11
#5
Raymond Ainger, III
8
#6
Edward A. Grabover
7
#6
Robert H. Quint
7
#8
Erik Sluyter
6
#9
Edward A. Wooff, Jr.
5
#9
John Wardle
5
#11
Dominick G. Esposito
4
#11
Richard J. O'Hare
4
#13
Claude E. Petruzzi
3
#13
Frederick A. Miller
3
#13
Mihail Filip
3
#13
Thomas W. Bracci
3
#17
Arkady Kokish
2
#17
Ivo Brosens
2
#17
John A. Williams
2
#17
Michael H. Redler
2
#17
Rudi Campo
2
#17
Stefan Gordts
2
#17
Steve Livneh
2
#17
William J. S. Zhong
2
#25
Naum Metelitsa
1
#25
Abraham Kotlyar
1
#25
Anthony Mazurkewitz
1
#25
Austin R. Braganza
1
#25
Bendetto Grossi
1
#25
Carlo A. DiRusso
1
#25
Dawn M. DeLemos
1
#25
David L. Morris
1
#25
Demetrius Bagley
1
#25
Ed Grabover
1
#25
Erhan H. Gunday
1
#25
Franklin P. Gregory, Jr.
1
#25
Jack Cohen
1
#25
James A. Howland
1
#25
James E. Humphreys, Jr.
1
#25
Jay Yi
1
#25
Kenneth C. Hancock
1
#25
Milton Chin
1
#25
Michelle Maxfield
1
#25
Mohammed Ali
1
#25
Peter N. Hawley
1
#25
Richard R. Muller, Jr.
1
#25
Ronald Michael Callanan
1
#25
Walter B. Kobyra
1
#25
Paul Hartloff
1
#25
Richard A. Auhll
1
1
2
Next »
Related Companies
Targor Gmbh
71
Alco Industries
71
Reilly Industries
71
Central Research Laboratories Limited
71
Alcon Universal
71
Hedstrom
71
Genrad
71
Unitrode
71
Graphic Controls
71