Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4686253 | Lightweight joint compound having improved paintability | Arthur W. Struss, Terrance L. Williams | 1987-08-11 |
| 4183987 | Kerfed edge gypsum board having improved edge strength | Nels Nelsson | 1980-01-15 |