Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7124548 | Folded high-profile ridge cover, and method of making | Kenneth Engelman, Lawrence Penner | 2006-10-24 |
| 7073295 | Front fold ridge cover and method of making | Lawrence Penner | 2006-07-11 |
| RE36858 | Low-cost highly aesthetic and durable shingle | George E. Conley, Alvis M. Rawlinson | 2000-09-12 |
| 5933976 | Method of installing a ridge cover and guide tool for practicing this method | Ken L. Gunier | 1999-08-10 |
| 5365711 | Low-cost highly aesthetic and durable shingle | George E. Conley, Alvis M. Rawlinson | 1994-11-22 |
| 4920721 | High profile fiberglass shingle | George E. Conley | 1990-05-01 |