Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4900493 | Method for producing a synthetic resin skin | Hermann Bartels, Ruediger Leipnitz | 1990-02-13 |
| 4773844 | Apparatus for producing a synthetic resin skin | Hermann Bartels, Ruediger Leipnitz | 1988-09-27 |
| 4606868 | Method for casting thin-walled work pieces of synthetic materials | Hermann Bartels | 1986-08-19 |