Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5336022 | Method for producing enhanced soil stabilization reactions between lime and clay soils due to the effect of silica addition | Norman L. Hains, David C. Hoffman | 1994-08-09 |
| 5228808 | Method for preventing the adverse effects of swell in sulfate bearing, expansive clay soils | Norman L. Hains, David C. Hoffman | 1993-07-20 |