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
›
Douglas Dynamics, L.L.C.
DL
Douglas Dynamics, L.L.C.
— 50 Patents
Rank
(All Time):
#13,054
of
106,120
Top 15%
54
inventors
50
Patents All Time
Top Inventors at Douglas Dynamics, L.L.C.
All Time
Showing
1–50
of
54
inventors
Rank
Name
Patents
1
David N. Bloxdorf
14
2
Chad Thomas Barker
11
3
James R. Doornek
10
#4
Steven Klug
8
#5
Christopher Aaron Horn
7
#5
Gary E. Watson
7
#5
Matthew Terran Kaminecki
7
#8
Andre Valmont LeBlond
5
#8
Edward A. Simi
5
#8
Matthew Thoma Curran
5
#11
Christopher A. Dominguez
4
#11
James Calvin Pieper
4
#11
Paul Yagiela
4
#11
Tyler Jones
4
#15
Gerald L. Depies
3
#15
Gerald E. Lutzke
3
#15
John Wallace Field
3
#15
Mark Lawrence Stultz
3
#15
Steven Radomski
3
#20
Andrew John Humke
2
#20
Bob Iverson
2
#20
Cal G. Niemela
2
#20
Clay Hildreth
2
#20
Clarence J. Rand
2
#20
Edwin A. Wayne
2
#20
Everett Hughes
2
#20
Gregory B. Neilson
2
#20
Greg Neilson
2
#20
Jerald L. Plyer
2
#20
Leonard D. Morris
2
#20
Michael Lee Frank
2
#20
Richard R. Miller
2
#20
Robert Douglas Clark
2
#20
Ryan Fossett
2
#20
Seth Thomas Bergerud
2
#20
Thomas Fechter
2
#37
Barry Truan
1
#37
Christian Torp Nielsen
1
#37
Charles J. Solveson
1
#37
Charles Truan
1
#37
Craig D. MacIntosh
1
#37
F. William Dyer, II
1
#37
Gatesy R.C.D. Gates
1
#37
James P. Doornek
1
#37
Jeffrey Krogmann
1
#37
John Robert Behrens
1
#37
Matthew Thomas Curran
1
#37
Michael Goy
1
#37
Nels A. Niemela
1
#37
Philip J. Quenzi
1
1
2
Next »
Related Companies
Peloton Technology
51
Usai
51
Withings
51
Itron Networked Solutions
51
Vehicle Service Group
50
Mftb Holdco
50
Power Forest Technology
50
Beijing Youzhuju Network Technology Co.
50
Speculative Product Design
50