Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10808424 | Modular multi-point lock | Douglas John Criddle, Gary E. Tagtow, Tracy Lammers | 2020-10-20 |
| 10662675 | Modular electronic deadbolt systems | Gary E. Tagtow, Tracy Lammers, Bruce Hagemeyer, Douglas John Criddle | 2020-05-26 |
| 10557300 | Garage door access remote | Gary E. Tagtow, Matt Halbersma, Douglas John Criddle, Tracy Lammers | 2020-02-11 |