Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6730161 | Treatment of fly ash | Vaikuntam I. Lakshmanan, Ramamritham Sridhar, V. Mohan Malhotra | 2004-05-04 |
| 6447597 | Hydrated calcium aluminate based expansive admixture | Wellington L. Repette | 2002-09-10 |
| 5584920 | Sulphonated hydrocracking residues as concrete admixtures | Henry Sawatzky, Ian F. Clelland, Jean-Francois Houde, Brian A. Farnand | 1996-12-17 |