Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6210659 | Aqueous pearlescing concentrates | Rudolf Bimczok, Werner Kohl, Achim Ansmann, Rolf Kawa | 2001-04-03 |
| 4892728 | Pumpable cationic fatty alcohol despersion | Rolf Kawa, Holger Tesmann, Karl-Heinz Rose, Eugen Konrad | 1990-01-09 |