Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9464392 | Battery operated parking barrier | — | 2016-10-11 |
| 7891222 | Electronic locking system | Jeffery R. Ratkus | 2011-02-22 |
| 7179015 | Remote controlled tire deflator | James M. Rittenhouse | 2007-02-20 |
| 7001099 | Remote controlled parking barrier apparatus | James M. Rittenhouse | 2006-02-21 |
| D511470 | Parking barrier | James M. Rittenhouse | 2005-11-15 |
| 5625980 | Garage door opener with remote safety sensors | Oren Teich, Vijay Tandon, Ralph Giffone | 1997-05-06 |
| 5596840 | Garage door opener with remote safety sensors | — | 1997-01-28 |
| 5584145 | Garage door opener with remote safety sensors | — | 1996-12-17 |
| D331409 | Combined remote control and telephone | Amy B. Goldsmith | 1992-12-01 |
| 5128792 | Self-synchronizing infra-red communication system | Keith Guillaume | 1992-07-07 |
| 4850040 | Infrared remote control system for activating and deactivating one or more devices in a single enclosed space | Duane Buckingham | 1989-07-18 |
| 4785285 | Parallel bus alarm system | Keith Guillaume, Ram Shalvi | 1988-11-15 |
| 4751498 | Single-wire loop alarm system | Ram Shalvi, Keith Guillaume | 1988-06-14 |
| 4742334 | Single-wire loop alarm system | Keith Guillaume, Ram Shalvi | 1988-05-03 |
| 4588861 | Telephone intercom system | — | 1986-05-13 |
| 4323820 | Emergency lighting system | — | 1982-04-06 |