Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11066850 | Access handle for sliding doors | Tyler Welbig, Gary E. Tagtow, Matt Halbersma | 2021-07-20 |
| 11021892 | Locking system having an electronic keeper | Gary E. Tagtow, Tracy Lammers, Bruce Hagemeyer, Douglas John Criddle | 2021-06-01 |
| 10968661 | Locking system having an electronic deadbolt | Gary E. Tagtow, Tracy Lammers, Bruce Hagemeyer, Douglas John Criddle | 2021-04-06 |