Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4240840 | Cementitious compositions | Stephen Barry Downing, Maurice W. Skinner, Edmund J. West, David G. Dawson | 1980-12-23 |
| 4229224 | Cementitious compositions | David G. Dawson, Maurice W. Skinner, Edmund J. West | 1980-10-21 |