Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849268 | Lap seam for liquid containment systems and method of forming | Daniel J. Cotsakis, Laura E. Gish | 1989-07-18 |
| 4649686 | High wind resistant membrane roof system | Richard Gillenwater | 1987-03-17 |