Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Derrick Manufacturing — 35 Patents

Rank (All Time): #18,133 of 106,120Top 20%
14 inventors
35 Patents All Time

Top Inventors at Derrick Manufacturing All Time

Showing 1–14 of 14 inventors

RankNamePatents
1 John J. Bakula 22
2 Keith Wojciechowski 6
3 William W. Derrick 5
#4 James W. Derrick 3
#4 James A. Mooney 3
#6 Raymond Kirsch 2
#6 Robert G. Derrick 2
#6 Thomas M. Fallon 2
#9 Christopher P. Kelley 1
#9 H. William Derrick, Jr. 1
#9 John A. Tanner 1
#9 Ronald J. Schiller 1
#9 Scott Michael Kroon 1
#9 L. Charles Matsch 1