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
›
Harsco
HA
Harsco
— 124 Patents
Rank
(All Time):
#5,901
of
106,120
Top 6%
196
inventors
124
Patents All Time
Top Inventors at Harsco
All Time
Showing
1–50
of
196
inventors
Rank
Name
Patents
1
Michael S. D'Alessio
11
1
Harry Madison
17
3
Bruce S. Johnson
9
#4
Stephen R. Miranda
8
#5
Anthony J. Gallis
8
#5
Anthony P. Delucia
12
#7
Robert S. Miller
10
#8
Kimberly A. Papania
4
#8
Peter R. Maurice
6
#10
David M. Lechner
4
#10
G. Robert Newman
3
#10
Krzysztof E. Glomski
3
#10
Michael B. Gilbert
3
#10
William V. Abbate
3
#15
Ayyala Perisastry
2
#15
Bruce J. Barker
2
#15
Craig A. Sandsted
4
#15
Douglas W. Hutchinson
2
#15
Eric Carter
5
#15
Gene Anthony Iannazzo
2
#15
John Clark
2
#15
Joseph Palese
3
#15
Joseph C. Trinkwalder, Jr.
2
#15
John Turner
2
#15
Kurt L. Natterstad
2
#15
Lee Bolton
2
#15
Lester K. Eigenbrod
2
#15
Mary Provance-Bowley
2
#15
Marion D. Smith
3
#15
Paul H. Borst
2
#15
Richard A. Koster
2
#15
Richard A. Vishe
2
#15
Robert C. Downey, Jr.
2
#15
Robert Dunk
2
#15
Robert S. Safier
2
#15
Stanley A. Sandler
2
#15
Thomas H. Hoover
2
#15
William Parker Breedlove
2
#15
Stephen G. Cotsford
3
#40
Charles E. Hulswitt
1
#40
Charles Matcovich
1
#40
Jack Linderman
1
#40
William A. Bartuski
1
#40
Frank Digh
1
#40
Daniel Baudin
1
#40
William Krysalka
1
#40
Seymour Bassman
1
#40
Fred J. Darms, Jr.
1
#40
Abdel H. Shidfar
1
#40
Allan M. Zarembski
1
1
2
3
Next »
Related Companies
Advanced Liquid Logic
124
Vaisala Oyj
124
Paul Hartmann Ag
124
Daikyo Seiko
124
Watts Regulator
124
Great Plains Manufacturing
124
Indian Institute Of Technology Madras (Iit Madras)
124
The Mclean Hospital
124
Skyhook Wireless
124