Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4963219 | Method of making and assembling roof edge structures incorporated with single-ply polymer-coated fabric roof structures | John C. Greko, Francis R. Laurion | 1990-10-16 |
| 4848045 | Roof edge structures incorporated with single-ply polymer-coated fabric roof structures, and methods of making and assembling them | John C. Greko, Francis R. Laurion | 1989-07-18 |
| 4754678 | Method and apparatus for shaping plastic foam insulation board to fit roof contours | Allen B. Woodruff | 1988-07-05 |