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

Castle

Rank (All Time): #67,937 of 106,127Top 65%
6 inventors
8 Patents All Time

Top Inventors at Castle All Time

Showing 1–6 of 6 inventors

RankNamePatents
1 John Scoville 4
2 Frieder H. Ensslin 2
2 Max W. Durney 2
2 Patrick J. McCormick 2
#5 David Cole 1
#5 Danny J. LePage 1