Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9829021 | Compensation nut fastener assembly | Lawrence W. Johnson | 2017-11-28 |
| RE32710 | Single-ply sealed membrane roofing system | — | 1988-07-12 |
| 4546589 | Single-ply sealed membrane roofing system | — | 1985-10-15 |