Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221078 | Method for varying the spring rigidity of an elastomer mount, and corresponding elastic mount | Volker Hartel, Matthias Richter | 1993-06-22 |
| 4846917 | Method of producing an inflatable hollow body | Volker Hartel, Hans Schreiber | 1989-07-11 |