Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8348308 | High security lock for door | Bruce Hagemeyer, Dan Raap, Tracy Lammers, Allen Rickenbaugh | 2013-01-08 |
| 7513540 | Inactive door bolt | Bruce Hagemeyer, Fredrick L. Hrdlicka, Chad Swier, Daniel L. Raap | 2009-04-07 |
| 6814127 | Retractable screen door components and method | Dean A. Rennich, Bruce Hagemeyer, Ronald L. Spoelstra | 2004-11-09 |