Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5294256 | Additives for hydraulic cement compositions | Willis A. Weigand, James M. Gaidis, Ellis Gartner | 1994-03-15 |
| 5203512 | Processing additive for high-pressure roll press process of forming finish grind cement | Ellis Gartner, David F. Myers | 1993-04-20 |
| 5180430 | Concrete surface air void reduction admixture | Ellis Gartner | 1993-01-19 |