Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5427617 | Methods and compositions for reclaiming concrete | Gregory C. J. Guecia, David A. Lupyan, Frederick D. Kinney | 1995-06-27 |
| 5262089 | Admixtures for inhibiting corrosion of steel in concrete | Mark A. BURY, Stephen A. Farrington, Charles K. Nmai | 1993-11-16 |
| 5203919 | Method and compositions for stabilizing concrete residues | Robert J. Ryan | 1993-04-20 |
| 4964917 | Methods and compositions for reclaiming concrete | Gregory C. J. Guecia, David A. Lupyan, Frederick D. Kinney | 1990-10-23 |
| 4328145 | Additive for air-entrained super plasticized concrete, concrete produced thereby and method of producing air-entrained super plasticized concrete | James D. Connolly | 1982-05-04 |