Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6242143 | Method and device for the processing of silver halide photographic materials | Jacques Roussilhe | 2001-06-05 |
| 6228237 | Automatic measuring device for the concentration of a developing agent | Jacques Roussilhe, Gerard R. Sirand-Rey | 2001-05-08 |
| 6024501 | Method for controlling the activity of an inorganic development composition | Gerard R. Sirand-Rey, Alain Andre Charret | 2000-02-15 |
| 6010835 | Kit for photographic color developing bath | Francoise M. Thomas, Philippe Strauel | 2000-01-04 |
| 5686232 | Composition for developing an exposed photographic product having improved stability in air | Jacques Roussilhe | 1997-11-11 |
| 5656415 | Composition for developing an exposed photographic product having improved stability in air | Jacques Roussilhe | 1997-08-12 |
| 4315986 | Photographic emulsions and elements capable of forming direct-positive images | Roger M. Baralle, Marcel A. Compere, Maurice E. Pfaff | 1982-02-16 |
| 4306016 | Photographic emulsions and elements capable of forming direct-positive images | Roger M. Baralle, Marcel A. Compere, Maurice E. Pfaff, Frederic Xavier Jordi | 1981-12-15 |
| 4306017 | Photographic emulsions and elements capable of forming direct-positive images | Roger M. Baralle, Marcel A. Compere, Maurice E. Pfaff, Frederic Xavier Jordi | 1981-12-15 |
| 4273863 | Process of formation of color images, photographic product and treating solutions useful for putting the process into practice | Jean Deabriges, Yves Ferre | 1981-06-16 |
| 4186004 | Process of formation of color images, photographic product and treatment solutions useful therein | Jean Deabriges, Yves Ferre | 1980-01-29 |