Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7770335 | Rotational roof jack | — | 2010-08-10 |
| 6640503 | Waterproof roof deck post construction and method | Mark Andersen, Richard Arthur SPINDEL | 2003-11-04 |
| 6591561 | Waterproof roof deck post construction | — | 2003-07-15 |