Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9593525 | Articulated overhead door systems and methods | Kenneth H. Betts, Howard J. Williams | 2017-03-14 |
| 8997432 | Modular entrance floor system | John Leavitt Gard, David Adams, Nancy Jane Perkins, David Ronald Bailey, Craig Young +2 more | 2015-04-07 |
| 8601767 | Modular entrance floor system | John Leavitt Gard, David Adams, Nancy Jane Perkins, David Ronald Bailey, Craig Young +2 more | 2013-12-10 |
| 6161348 | Drop-out fire vent | — | 2000-12-19 |