Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9765550 | Passive door lock mechanisms | Austin Hemmingsen, Tracy Lammers, Gary E. Tagtow | 2017-09-19 |
| 9758997 | High security lock for door | Bruce Hagemeyer, Dan Raap, Gary E. Tagtow, Tracy Lammers | 2017-09-12 |
| 9605444 | Entry door latch actuator system | Gary E. Tagtow, Tracy Lammers, Bruce Hagemeyer | 2017-03-28 |