Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689272 | Process for a two-stage hydrophilizing post-treatment of aluminum oxide layers with aqueous solutions and use thereof in the manufacture of supports for offset printing plates | Ulrich Simon, Gerhard Sprintschnik | 1987-08-25 |
| 4650739 | Process for post-treating aluminum oxide layers with aqueous solutions containing phosphoroxo anions in the manufacture of offset printing plates with radiation sensitive layer and printing plates therefor | Ulrich Simon | 1987-03-17 |