Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D636275 | Container | — | 2011-04-19 |
| 5666776 | Laminated roofing shingle | Casimir Paul Weaver, Matti Kiik, William J. Schultz | 1997-09-16 |
| 5369929 | Laminated roofing shingle | Casimir Paul Weaver, Matti Kiik, William J. Schultz | 1994-12-06 |
| D347900 | Laminated shingle | — | 1994-06-14 |