Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5198052 | Method of reshaping a gypsum board core and products made by same | — | 1993-03-30 |
| 4647486 | Fire resistant gypsum board . . . anhydrite | — | 1987-03-03 |
| 4557973 | Fire resistant gypsum board containing mineral wool fibers and method | — | 1985-12-10 |
| 4376674 | Method of manufacturing flame and abuse resistant fiber panel and products resulting | — | 1983-03-15 |