Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873023 | Preparation of monoolefinically unsaturated carboxyl-containing versatic esters | Wolfgang Druschke, Helmut Jaeger | 1989-10-10 |
| 4849307 | Photosensitive recording materials having a novel graft copolymer binder | Gerhard Hoffmann, Horst Koch | 1989-07-18 |