Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4978718 | Novel matting agent and its use | Ingo Haller, Manfred Heisler, Willi Kleine | 1990-12-18 |
| 4914154 | Novel matting agent and its use | Ingo Haller, Manfred Heisler, Willi Kleine | 1990-04-03 |