Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
ED

Extrusion Dies

Rank (All Time): #38,772 of 106,127Top 40%
11 inventors
15 Patents All Time

Top Inventors at Extrusion Dies All Time

Showing 1–11 of 11 inventors

RankNamePatents
1 Harry G. Lippert 7
1 Vernon J. Krupa 7
3 John A. Ulcej 5
#4 Donald R. Garton 4
#5 Gregory M. Wilson 3
#6 John W. Ryan 2
#7 Brian M. Pitsch 1
#7 Dale P. Pitsch 1
#7 F. John Herrington 1
#7 John A. Ulcei 1
#7 Jeffrey M. Seckora 1