Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5931623 | Spiral binding method and apparatus | Mark Hastings, Randy C. Peterson, Kevin L. Engelbert | 1999-08-03 |
| 5695308 | Spiral binding method and apparatus | Mark Hastings, Randy C. Peterson, Kevin L. Engelbert | 1997-12-09 |
| D376607 | Spiral binder | Kevin L. Engelbert, Mark Hastings, Randy C. Peterson | 1996-12-17 |