Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5565028 | Alkali activated class C fly ash cement | Amitava Roy, Paul J. Schilling | 1996-10-15 |
| 5435843 | Alkali activated class C fly ash cement | Amitava Roy, Paul J. Schilling | 1995-07-25 |