Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11021892 | Locking system having an electronic keeper | Gary E. Tagtow, Michael Lee Anderson, Tracy Lammers, Douglas John Criddle | 2021-06-01 |
| 10968661 | Locking system having an electronic deadbolt | Gary E. Tagtow, Michael Lee Anderson, Tracy Lammers, Douglas John Criddle | 2021-04-06 |