Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4516363 | Superinsulation roof rafter trusses and building system | William W. Alcorn, David S. Matychowiak | 1985-05-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4516363 | Superinsulation roof rafter trusses and building system | William W. Alcorn, David S. Matychowiak | 1985-05-14 |