Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693448 | Method for making an offset printing plate according to the silver salt diffusion transfer process | Paul Coppens, Ludovicus H. Vervloet, Eric Hoes | 1997-12-02 |
| 5645971 | Method for making a lithographic printing plate according to the silver salt diffusion transfer process | Rene De Keyzer, Jean-Marie Dewanckele, Marcel J. Monbaliu, Jos Vaes | 1997-07-08 |
| 5597676 | Method for making improved imaging elements suitable for use in silver salt diffusion transfer process | Paul Coppens | 1997-01-28 |