Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362703 | Process for preparing cryolite from fly ash | Turgut Demirel | 1982-12-07 |
| 4328037 | Process of producing hydraulic cement from fly ash | Turgut Demirel, Dah-Yinn Lee | 1982-05-04 |