Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4436810 | Color-photographic recording material containing non-diffusing electron donor precursor compounds | Paul Marx, Wolfgang Lassig | 1984-03-13 |
| 4204867 | Process for the production of color photographic images using new white coupler substances | Wolfgang Lassig, Ernst Meier, Immo Boie, Gertrud Kirchhoff, Helmut Haseler +1 more | 1980-05-27 |
| 4183752 | Light-sensitive photographic material | Wolfgang Lassig, Ernst Meier, Erwin Ranz, Karl-Wilhelm Schranz | 1980-01-15 |