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

Helmut Siegmund

Bad Honnef, DE: #1 of 3 inventorsTop 35%
Overall (2003): #213,813 of 273,478Top 80%
1 Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6539681 Spacer plate for a hollow floor and a hollow floor made therewith 2003-04-01