Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5427617 | Methods and compositions for reclaiming concrete | Gregory S. Bobrowski, David A. Lupyan, Frederick D. Kinney | 1995-06-27 |
| 4964917 | Methods and compositions for reclaiming concrete | Gregory S. Bobrowski, David A. Lupyan, Frederick D. Kinney | 1990-10-23 |