Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6112464 | Bracket for counterbalanced garage door | James L. Grisham | 2000-09-05 |
| 5857510 | Reinforced sectional door | Leroy G. Krupke, Foad Vafaie, James L. Grisham | 1999-01-12 |
| 5842508 | Hinge assembly for sectional door | Leroy G. Krupke, Foad Vafaie, James L. Grisham | 1998-12-01 |
| 5706877 | Locking and reinforcing mechanism for garage door | James L. Grisham | 1998-01-13 |
| 5348437 | Vehicle restraining apparatus | Leroy G. Krupke, James L. Grisham | 1994-09-20 |