Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4944818 | Composite roofing substrate panel | John M. Dybsky, George A. Erswell, Jr., John Silvestri, Craig A. McDonald | 1990-07-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4944818 | Composite roofing substrate panel | John M. Dybsky, George A. Erswell, Jr., John Silvestri, Craig A. McDonald | 1990-07-31 |