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

Sperlan Hearing Protection

Rank (All Time): #40,745 of 106,127Top 40%
12 inventors
14 Patents All Time

Top Inventors at Sperlan Hearing Protection All Time

Showing 1–12 of 12 inventors

RankNamePatents
1 Jim Tiemens 4
1 Stephen D. Gilder 4
3 John Jenkins 3
#4 David B. Mulvey 2
#4 Kevin Michael 2
#6 Edwin Woo 1
#6 Fredrik Hansson 1
#6 Jarle Svean 1
#6 Larry Sanders 1
#6 Peter Franzen 1
#6 Per Hiselius 1
#6 Thomas W. Fleming 1