Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5657911 | Tap head for keg fittings | Helmut Wiedmann | 1997-08-19 |
| 5176298 | Tap head for keg fittings | Helmut Wiedmann | 1993-01-05 |
| 5098060 | Pinchcock | Klaus Gaul, Gerd Swaczyna, Helmut Wiedmann | 1992-03-24 |
| 4828147 | Device for tapping beer from containers, in particular, cans | Helmut Wiedmann | 1989-05-09 |
| 4202463 | Stoppers for pressure containers | — | 1980-05-13 |