Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4963219 | Method of making and assembling roof edge structures incorporated with single-ply polymer-coated fabric roof structures | Wayne G. Nichols, Francis R. Laurion | 1990-10-16 |
| 4909135 | Roof vent structure for plastic membrane roofs | — | 1990-03-20 |
| 4848045 | Roof edge structures incorporated with single-ply polymer-coated fabric roof structures, and methods of making and assembling them | Wayne G. Nichols, Francis R. Laurion | 1989-07-18 |
| 4652321 | Methods of forming polymer coated fabric roof vent pipe enclosures in flexible roof covering membranes | — | 1987-03-24 |