Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5073479 | Chemical sensitization of photographic silver halide emulsions | — | 1991-12-17 |
| 4619838 | Process for the deposition of metals on semiconductor powders | Kurt Meier, Niklaus Buhler | 1986-10-28 |
| 4559237 | Process for the deposition of metals on semiconductor powders | Kurt Meier, Niklaus Buhler | 1985-12-17 |
| 4484992 | Process for the production of hydrogen by means of heterogeneous photoredox catalysis | Niklaus Buhler, Kurt Meier, Milos Rusek | 1984-11-27 |
| 4376817 | Direct-positive photographic material | Rolf Steiger | 1983-03-15 |
| 4326021 | Photographic negative material with at least one layer containing a desensitized silver halide emulsion | Rolf Steiger | 1982-04-20 |
| 4311786 | Novel sensitizers and their use in direct-positive photographic materials | Rolf Steiger | 1982-01-19 |