Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6330817 | Anti-jam locking mechanism for electronic security system | — | 2001-12-18 |
| 6286347 | Clutch mechanism with moveable injector retainer wall for door lock system | — | 2001-09-11 |
| 6104594 | Electromagnetic latch retractor for exit bar | John E. Walsh, Leon Boiucaner | 2000-08-15 |
| 6082791 | Electric strike | Ryan D. Cutter | 2000-07-04 |
| 6076870 | Motorized electric strike | — | 2000-06-20 |
| 6053546 | Trigger system for electromagnetic lock | — | 2000-04-25 |
| 6045169 | Latch bolt set | — | 2000-04-04 |
| 5988708 | Electromagnetically managed latching exit bar | John E. Walsh, James J. Scott, Peter S. Conklin, Gary E. Lavelle | 1999-11-23 |
| 5933067 | Universal solenoid actuator | — | 1999-08-03 |
| 5897149 | Armature assembly for multiple locks | — | 1999-04-27 |
| 5823582 | Electromagnetically-managed latching exit bar | John E. Walsh, James J. Scott | 1998-10-20 |
| 5815084 | Programmer for contact readable electronic control system and programming method therefor | Gary E. Lavelle | 1998-09-29 |
| 5735559 | Electric strike | — | 1998-04-07 |
| 5640863 | Clutch mechanism for door lock system | — | 1997-06-24 |
| 5641187 | Electromagnetic shear lock | — | 1997-06-24 |
| 5611582 | Impact resistant armature | John E. Walsh, James C. Wobbles | 1997-03-18 |
| 5608298 | Privacy protection for electronic lock system | Gary E. Lavelle | 1997-03-04 |
| 5537103 | Programmer for contact readable electronic control system and programming method therefor | Gary E. Lavelle | 1996-07-16 |
| RE35268 | Door security system | Gary E. Lavelle, James J. Scott | 1996-06-11 |
| 5516166 | Electromagnetic lock | Peter S. Conklin | 1996-05-14 |
| 5517176 | Emergency exit bar with dual sensors | Gary E. Lavelle, George A. Baehr | 1996-05-14 |
| 5496079 | Swinging electromagnetic lock | — | 1996-03-05 |
| RE35146 | Electromagnetic shear lock | — | 1996-01-16 |
| 5473236 | Electronic lock system for door latch assembly | — | 1995-12-05 |
| 5065136 | Door security system | Gary E. Lavelle, James J. Scott | 1991-11-12 |