Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4752538 | Method for forming a lightweight cementitious structural product and a product formed thereby | — | 1988-06-21 |
| 4744961 | Submerged combustion calcination | — | 1988-05-17 |
| 4744963 | Highly efficient calcination of gypsum to hemihydrate | Otto L. Dozsa, Donald R. Janninck, Richard F. Stone | 1988-05-17 |
| 4626199 | Submerged combustion calcination | — | 1986-12-02 |
| 4360386 | Treating calcined gypsum with solubilizing agent | — | 1982-11-23 |
| 4252568 | Process for preparing calcined gypsum and gypsum board using ligno sulfonates | — | 1981-02-24 |