Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5299487 | Weapons system with at least one barrel | Roland Bertiller, Friedhelm Kersting | 1994-04-05 |
| 4642928 | Insert for reducing the caliber of a weapon | Roland Bertiller, Gerd Kellner | 1987-02-17 |
| 4633755 | Gastight seal of a gun barrel | Roland Bertiller, Gerd Kellner | 1987-01-06 |
| 4404765 | Gun barrel insert | Gerd Kellner | 1983-09-20 |