Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4478796 | Production of magnesium oxide from magnesium silicates by basic extraction of silica | Jean-Pierre Drolet | 1984-10-23 |
| 4430157 | Calcined serpentine as inorganic charge in sheet materials | — | 1984-02-07 |
| 4356057 | Phosphated asbestos fibers | Jacques Dunnigan | 1982-10-26 |
| 4289736 | Filtering of precipitating silica | — | 1981-09-15 |
| 4277449 | Dry reaction process of asbestos tailings and ammonium sulfate | — | 1981-07-07 |
| 4277596 | Calcined polyhydroxysilicate polymer reaction product | — | 1981-07-07 |