Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8087096 | Slip resistant multi-layered articles | Jeffrey A. Klein, Kristy L. Vonk, Mark A. Williams | 2012-01-03 |
| D415174 | Roofing tool | — | 1999-10-12 |
| 4651373 | Roofing tool | — | 1987-03-24 |