Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38210 | Metal shingle with gutter and interlocking edges | David J. Plath | 2003-08-12 |
| D423122 | Interlocking shingle pattern | David J. Plath | 2000-04-18 |
| D415848 | Metal shingle | David J. Plath | 1999-10-26 |
| 5613337 | Metal shingle with gutter and interlocking edges | David J. Plath | 1997-03-25 |