Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4988591 | Process for producing color images | — | 1991-01-29 |
| 4533611 | Process for preparing a planographic printing plate | Peter Padberg | 1985-08-06 |
| 4512658 | Electrophotographic copier | — | 1985-04-23 |
| 4301225 | Alcohol soluble, organic photoconductor containing polymeric protective layer on electrophotographic material | Heinz Herrmann | 1981-11-17 |