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

Sparco — 8 Patents

Rank (All Time): #68,093 of 106,120Top 65%
6 inventors
8 Patents All Time

Top Inventors at Sparco All Time

Showing 1–6 of 6 inventors

RankNamePatents
1 Benno Lebkuchner 5
2 Hans L. Kuster 1
2 Kenneth Sundberg 1
2 Leonid V. Budaragin 1
2 Luigi A. Cazzaniga 1
2 Robert W. Castle 1