Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4367407 | Method for converting luminosity values into isochromates | Hans W. Gottert | 1983-01-04 |
| 4268155 | Photographic apparatus for plate thermography | Gunther Lehnert | 1981-05-19 |