Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4379828 | Image receptor element for the dye diffusion transfer process | Werner Liebe, Karl Lohmer | 1983-04-12 |
| 4297438 | Color-photographic development process | Helmut Haseler, Heinz Meckl, Karl Lohmer | 1981-10-27 |