Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11634931 | Modular electronic deadbolt systems | Gary E. Tagtow, Tracy Lammers, Bruce Hagemeyer, Douglas John Criddle | 2023-04-25 |
| 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 |
| 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 |
| 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 |
| 9252588 | Service voltage load protection in an electric utility meter | Akash Dani, John T. Voisine | 2016-02-02 |
| 7545135 | Electrical service disconnect in a modular meter | Brett Holle, John T. Voisine, Scott Gambill | 2009-06-09 |
| 7362232 | Electrical service disconnect having external interface | Brett Holle, John T. Voisine | 2008-04-22 |
| 7091878 | Electrical service disconnect having tamper detection | Brett Holle, John T. Voisine | 2006-08-15 |
| 6609490 | Piston head for a spark ignition engine | John Flinchbaugh | 2003-08-26 |
| 5321697 | Solid state storage device | Eric C. Fromm, Lonnie R. Heidtke | 1994-06-14 |