Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4310497 | Process for purifying a hydrogen sulfide containing gas | Andre Deschamps, Claude Dezael, Sigismond Franckowiak | 1982-01-12 |
| 4277458 | Process for oxidizing sulfur and sulfur compounds | Andre Sugier, Philippe Courty, Andre Deschamps | 1981-07-07 |
| 4220634 | Process for converting ammonium imidodisulfate, ammonium sulfamate and ammonium dithionate to sulfur dioxide and ammonia | Andre Deschamps, Claude Dezael, Sigismond Franckowiak | 1980-09-02 |
| 4197277 | Process for oxidizing sulfur and sulfur compounds | Andre Sugier, Philippe Courty, Andre Deschamps | 1980-04-08 |