Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853448 | Perfluoroalkyl group-containing copolymers | Werner Muller | 1989-08-01 |
| 4822719 | Radiation-sensitive mixture, radiation-sensitive recording material containing said mixture, and process for preparing relief images | Ralf Schulze, Ju Sander, Kurt Erbes | 1989-04-18 |
| 4795829 | Process for separating higher molecular weight constituents from phenol polymers | Gabriele Lambert | 1989-01-03 |