Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11441333 | Electronic deadbolt systems | Gary E. Tagtow, Tracy Lammers, Bruce Hagemeyer, Douglas John Criddle | 2022-09-13 |
| 11248396 | Sealed keeper sensors | Tracy Lammers, Gary E. Tagtow, Matt Halbersma | 2022-02-15 |