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

Siegfried Derx

Lichtenfels, DE: #2 of 2 inventorsTop 100%
Overall (1997): #76,902 of 185,788Top 45%
1 Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5683495 Device for the filtration of a flow of air, in particular for the heating and/or air conditioning plant in a motor vehicle 1997-11-04