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

Sigma-Tek

Rank (All Time): #84,831 of 106,127Top 80%
7 inventors
6 Patents All Time

Top Inventors at Sigma-Tek All Time

Showing 1–7 of 7 inventors

RankNamePatents
1 Erich A. Wilson 2
1 Forest G. Brown 2
1 Jerry B. Bishop 2
1 Michael D. Kipp 2
1 Michael D. Ridges 2
#6 David B. Sawyer 1
#6 Francis A. Schwind 1