Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4499701 | Rabbeted shingle butt joint sidewall panel and shingle component | Willis G. Pehl | 1985-02-19 |
| 4459788 | Plywood-backed double course shingle panel | Willis G. Pehl | 1984-07-17 |
| 4345630 | Method of making rabbeted shingle butt joint sidewall panel | Willis G. Pehl | 1982-08-24 |
| 4292780 | Staggered butt sidewall shingle panel and method of making the same | Craig S. Barker | 1981-10-06 |
| 4201614 | Shake panel assembling machine | Craig S. Barker | 1980-05-06 |