Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7342171 | Integrated photovoltaic roofing component and panel | Bruce Khouri | 2008-03-11 |
| 5174438 | Conveyor belt parts and assembly | Robert Carl Witham | 1992-12-29 |
| 4860509 | Photovoltaic cells in combination with single ply roofing membranes | Heshmat Laaly | 1989-08-29 |
| 4440588 | Hot air welder for welding roofing material | Donald E. Dean | 1984-04-03 |