Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5470383 | Thickener combinations for building products | Walter Schermann, Dennis Miller, Jozef Bohme-Kovac | 1995-11-28 |
| 4414032 | Anti-flooding agent for paints and plasters | Walter Schrattenholz, Volker Knittel | 1983-11-08 |