Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6077593 | Durable edge ceiling board | — | 2000-06-20 |
| 5714200 | Coated, sag-resistant ceiling boards | William H. Frantz | 1998-02-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6077593 | Durable edge ceiling board | — | 2000-06-20 |
| 5714200 | Coated, sag-resistant ceiling boards | William H. Frantz | 1998-02-03 |