Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11634931 | Modular electronic deadbolt systems | Gary E. Tagtow, Michael Lee Anderson, Tracy Lammers, Douglas John Criddle | 2023-04-25 |
| 11441333 | Electronic deadbolt systems | Gary E. Tagtow, Michael Lee Anderson, Tracy Lammers, Douglas John Criddle | 2022-09-13 |
| 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 |
| 10662675 | Modular electronic deadbolt systems | Gary E. Tagtow, Michael Lee Anderson, Tracy Lammers, Douglas John Criddle | 2020-05-26 |
| 9885200 | Handle-actuated sliding door lock actuation assemblies | Tracy Lammers, Dan Raap, Gary E. Tagtow, Tim Eggebraaten | 2018-02-06 |
| 9797182 | Powered window system | Dan Raap, Gary E. Tagtow, Michael M. May, James G. Seaser | 2017-10-24 |
| 9790716 | Opposed hook sliding door lock | Dan Raap, Gary E. Tagtow | 2017-10-17 |
| 9758997 | High security lock for door | Dan Raap, Gary E. Tagtow, Tracy Lammers, Allen Rickenbaugh | 2017-09-12 |
| 9637957 | Automatically-extending remote door lock bolts | Dan Raap, Gary E. Tagtow | 2017-05-02 |
| 9605444 | Entry door latch actuator system | Allen Rickenbaugh, Gary E. Tagtow, Tracy Lammers | 2017-03-28 |
| 9133656 | Inverted constant force window balance for tilt sash | Travis Steen, Chad Swier, Dan Raap, Gary Newman | 2015-09-15 |
| 8939474 | Lock with sliding locking elements | Dan Raap, Gary E. Tagtow, Matt Coplan, Zaiding Shen | 2015-01-27 |
| 8628126 | High security lock for door | Dan Raap, Gary E. Tagtow, Tracy Lammers, Allen Rickenbaugh | 2014-01-14 |
| 8382166 | High security lock for door | Dan Raap, Gary E. Tagtow, Tracy Lammers, Allen Rickenbaugh | 2013-02-26 |
| 8376019 | Window assembly with movable interior sash | Marlo G. Van Klompenburg, Kenneth E. Nossaman, Kraig A. Downs, Gabriel P. Gromotka, Gary E. Tagtow +7 more | 2013-02-19 |
| 8348308 | High security lock for door | Dan Raap, Gary E. Tagtow, Tracy Lammers, Allen Rickenbaugh | 2013-01-08 |
| 7513540 | Inactive door bolt | Fredrick L. Hrdlicka, Gary E. Tagtow, Chad Swier, Daniel L. Raap | 2009-04-07 |
| 6962374 | Lock inhibitor for a sliding door lock assembly | Jeffrey Belloma | 2005-11-08 |
| 6814127 | Retractable screen door components and method | Gary E. Tagtow, Dean A. Rennich, Ronald L. Spoelstra | 2004-11-09 |
| 5299399 | Window panel with breather system | Bruce A. Baier, Merlan J. Rolffs, John Scharff | 1994-04-05 |
| 5285606 | Window and door assembly manufactured in half sections and method of installing same | — | 1994-02-15 |
| D338608 | Door handle | Timm Martin | 1993-08-24 |
| 5210986 | Window unit nailing fin and corner lock | Mearl J. Minter, Merlan J. Rolffs, Jay T. Scripter | 1993-05-18 |
| D329369 | Door handle | Timm Martin | 1992-09-15 |