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

Sparco

Rank (All Time): #68,093 of 106,127Top 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