Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5072533 | System for rolling advertising posters | Doepgen Heinz, Winkelmann Gerhard | 1991-12-17 |
| 4999931 | Shock absorbing system for footwear application | — | 1991-03-19 |
| 4223455 | Shoe sole containing discrete air-chambers | — | 1980-09-23 |