Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4900493 | Method for producing a synthetic resin skin | Hermann Bartels, Erich M. Christoph | 1990-02-13 |
| 4773844 | Apparatus for producing a synthetic resin skin | Hermann Bartels, Erich M. Christoph | 1988-09-27 |