Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Digital Recorders — 8 Patents

Rank (All Time): #66,955 of 106,120Top 65%
8 inventors
8 Patents All Time

Top Inventors at Digital Recorders All Time

Showing 1–8 of 8 inventors

RankNamePatents
1 Virgil D. Duncan 3
2 James D. Kennedy 2
2 John R. Rowlette, Jr. 2
2 William H. Miller 2
#5 Joanne D. Alpiser 1
#5 John R. Alpiser 1
#5 Lyman Alden Copps 1
#5 Tanya L. Johnson 1