Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6273699 | Device for manufacturing plastic film | — | 2001-08-14 |
| 6004651 | Composite slab made of plastic and method for its manufacture | Max Joseph Graf von Montgelas, Karl Harald Erlinghagen | 1999-12-21 |