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

Leonard G. Spelber

San Diego, CA: #8,341 of 23,606 inventorsTop 40%
California: #124,610 of 386,348 inventorsTop 35%
Overall (All Time): #1,306,515 of 4,157,543Top 35%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4573642 Water powered waste disposer with improved dynamic seal 1986-03-04
4553560 Anti-siphon control valve Abraham I. Tucker 1985-11-19
4405159 Waste disposer coupling 1983-09-20
4399947 Valve mechanism for a water operated waste disposal unit Abraham I. Tucker 1983-08-23