Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884708 | Pressure vessel | Ernst Lange, Dieter Vespermann | 1989-12-05 |
| 4487728 | Manufacture of a molding from a thermoplastic powder or granular material | Karl Hagen | 1984-12-11 |
| 4366369 | Apparatus for heating sheet-like thermoplastic preshapes | Karl Hagen, Gerhard Schmelzer | 1982-12-28 |