Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7520197 | Roofing material removal device | — | 2009-04-21 |
| 5918439 | Roof shingle replacement tool and method | John Metzer | 1999-07-06 |
| 4860518 | Fixture and method of laying shingles on the surface of a roof or vertical wall | — | 1989-08-29 |