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

Ludwig Birsa

Rockdale, IL: #1 of 2 inventorsTop 50%
Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,941,190 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4878475 Fuel supply system for internal combustion engines 1989-11-07