Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
PS

Petrarch Systems — 20 Patents

Rank (All Time): #29,692 of 105,732Top 30%
12 inventors
20 Patents All Time

Patents per Year

Patents granted per year, 1981 to 1989Bar chart with a peak of 6 patents in 1987.peak 61981: 1 patents19811982: 2 patents19821984: 2 patents19841985: 3 patents19851986: 4 patents19861987: 6 patents19871989: 2 patents1989

Top Inventors at Petrarch Systems All Time

Showing 1–12 of 12 inventors

RankNamePatents
1 Barry C. Arkles 16
2 James M. Lewis 4
3 Robert A. Owens 3
3 William R. Peterson, Jr. 3
#5 Andrew J. Blakeney 2
#6 Burrell N. Hamon 1
#6 Joseph M. Rokowski 1
#6 KEVIN KING 1
#6 Roland L. Chin 1
#6 Susan A. Ferguson 1
#6 Valentine T Zuba 1
#6 William S. Brinigar 1