Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917287 | Reversible envelope | — | 1990-04-17 |
| 4773193 | Flexible joint building system | Lawrence F. Biebuyck | 1988-09-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917287 | Reversible envelope | — | 1990-04-17 |
| 4773193 | Flexible joint building system | Lawrence F. Biebuyck | 1988-09-27 |