Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11634936 | Switch arrangements for powered doors | Carl David Hardison, III, Daniel Vandermillen, Steven Campbell | 2023-04-25 |
| 9556672 | Rolling windbars for roll-up doors | Steven Campbell | 2017-01-31 |
| 9388634 | Powered safety curtains | Carl David Hardison, III, David Swift, Ryan P. Beggs | 2016-07-12 |
| 9309717 | Powered safety curtains | Carl David Hardison, III, David Swift, Ryan P. Beggs | 2016-04-12 |