Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4533536 | Process for the manufacture of potassium sulphate by treating solutions containing magnesium chloride and potassium chloride | Michel Bichara, Emile Wendling | 1985-08-06 |
| 4504092 | Treatment of carnallitic ores | Michel Bichara, Jean-Pierre Koensgen, Michel Meriaux, Jean-Pierre Zimmermann | 1985-03-12 |