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

Erwin Happ

Neu-Ulm, DE: #155 of 315 inventorsTop 50%
Overall (All Time): #3,581,283 of 4,157,543Top 90%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6228969 Biodegradable polyester urethanes, method for the production and use thereof Yoon Lee, Hartmut Seliger 2001-05-08