Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4421704 | Method of treatment for plaster articles to improve wear and water resistance and article of manufacture | — | 1983-12-20 |
| 4350736 | Wear and water resistant plaster articles | — | 1982-09-21 |
| 4278468 | Gypsum fire barrier for cable fires | Rexford L. Selbe, Vincent M. Waropay, Paul S. Quigg | 1981-07-14 |