Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D939909 | Bottle opener | — | 2022-01-04 |
| D869922 | Bottle opener | — | 2019-12-17 |
| D867085 | Bottle opener | — | 2019-11-19 |
| D544563 | Divot repair and ball marker tool | — | 2007-06-12 |
| 5012348 | Terminal device for picture communication | Gunther Witzel, Franz Muller | 1991-04-30 |