Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7438335 | Compact electric strike with preload release capability | — | 2008-10-21 |
| 5782509 | Bolt closure maintenance for fire-degraded latching assembly | — | 1998-07-21 |
| 5588686 | Temperature responsive mechanism for controllably deadlocking a door to a door frame | Rory M. Riley, Michael Winardi | 1996-12-31 |
| 5490699 | Electric strike for fail safe or fail secure operation | — | 1996-02-13 |
| 5452927 | Door latching and unlatching assembly | — | 1995-09-26 |
| 5142890 | Electro-mechanical lock with rotary bolt | Klaus W. Gartner, John C. Herrmann, Peter J. Phillips | 1992-09-01 |
| 5136870 | Dual electronic lock for human passage door | Klaus W. Gartner | 1992-08-11 |
| 5134870 | Electro-mechanical lock with rotary bolt | Klaus W. Gartner, Peter J. Phillips, John C. Herrmann | 1992-08-04 |
| 5113675 | Intermediate door locking mechanism | — | 1992-05-19 |
| 5110009 | Coin roll dispensing mechanism | Klaus W. Gartner | 1992-05-05 |
| 5054350 | Key punch machine | Klaus W. Gartner | 1991-10-08 |
| 5033282 | Self-locking electronic lock | Klaus W. Gartner, Peter J. Phillips | 1991-07-23 |
| 5020345 | Self-locking electronic lock | Klaus W. Gartner, Peter J. Phillips | 1991-06-04 |
| 4967577 | Electronic lock with manual combination override | Klaus W. Gartner | 1990-11-06 |
| 4926664 | Self locking electronic lock | Klaus W. Gartner | 1990-05-22 |
| 4904984 | Combination lock with an additional security lock | Klaus W. Gartner | 1990-02-27 |
| 4899562 | Electronic door lock | Klaus W. Gartner | 1990-02-13 |