Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887547 | Apparatus for continuously applying a uniform coating to a material web | Herbert Sommer | 1989-12-19 |
| 4853314 | Positive-working radiation-sensitive coating solution and positive photoresist material with monoalkyl ether of 1,2-propanediol as solvent | Ralf Ohlenmacher | 1989-08-01 |