Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11912582 | Systems and methods to recover value-added materials from gypsum | Lucien M. Papouchado, Leonard Passmore, Joseph D. Preston | 2024-02-27 |
| 11479472 | Systems and methods to recover value-added materials from gypsum | Lucien M. Papouchado, Leonard Passmore, Joseph D. Preston | 2022-10-25 |
| 8193128 | Treatment of particles for improved performance as proppants | John R. Hellmann, Ryan P. Koseski | 2012-06-05 |