Patent Leaderboard
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
Search
Companies
Inventors
SL
Spectra Group Limited
Rank (All Time):
#7898
of 106,127
Top 8%
68 inventors
89
Patents All Time
Top Inventors at Spectra Group Limited
All Time
Showing 1–50 of 68 inventors
Rank
Name
Patents
1
Paul A. Hoisington
44
2
Nathan P. Hine
25
3
Douglas C. Neckers
18
#4
Edward R. Moynihan
16
#5
David Gailus
15
#6
Melvin L. Biggs
9
#7
Bruce A. Paulson
8
#7
Robert R. Schaffer
8
#9
Lawrence R. Young
7
#9
Linda T. Creagh
7
#9
Robert G. Palifka
7
#9
Steven H. Barss
7
#13
Marlene McDonald
6
#13
Steven J. Fulton
6
#15
David Adams-Brady
5
#15
Diane Mackay
5
#15
Kenneth H. Fischbeck
5
#15
Oleg Grinevich
5
#15
Alexandre Mejiritski
5
#20
Stephen C. Mackay
4
#20
Yong Zhou
4
#22
David Grose
3
#22
Dean H. Cranston
3
#22
Gerald T. Peters, Jr.
3
#22
Jack B. MacDonald
3
#22
Jianmin Shi
3
#27
Dustin B. Martin
2
#27
Jill Ann Hanson
2
#27
Jian Song
2
#27
John Malpert
2
#27
Kathleen G. Specht
2
#27
Marc A. Torrey
2
#27
Peter Wallis
2
#27
Richard Carden
2
#27
Robert Lee Wells
2
#27
Steven F. Fulton
2
#27
Wolter F. Jager
2
#27
Afranio Torres-Filho
2
#39
Carl Tracy
1
#39
Charles W. Spehrley, Jr
1
#39
Clifton L. Vaughan
1
#39
David A. Swett
1
#39
David G. Tomaszewski
1
#39
Frederick H. Amidon, Jr.
1
#39
James R. Flood
1
#39
Joseph William Klingler
1
#39
John F. Ray
1
#39
Kesheng Feng
1
#39
Keiji Matsui
1
#39
Lee T. Andrews
1
1
2
Next »