Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4504335 | Method for making reinforced cement board | — | 1985-03-12 |
| 4488909 | Non-expansive, rapid setting cement | Paul C. Webb | 1984-12-18 |
| 4488917 | Method for making cement board | Michael J. Porter | 1984-12-18 |
| 4450022 | Method and apparatus for making reinforced cement board | — | 1984-05-22 |
| 4350533 | High early strength cement | John R. Blasius, Paul C. Webb | 1982-09-21 |
| 4286991 | Very high early strength cement | Paul C. Webb | 1981-09-01 |
| 4286992 | Very high early strength cement | Paul C. Webb | 1981-09-01 |