Issued Patents All Time
Showing 25 most recent of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6317034 | Alarm sensor multiplexing | Jerry W. Birchfield | 2001-11-13 |
| 6093979 | Channel expander for remotely controlled automotive security and convenience systems | Jerry W. Birchfield, Glenn Busse, Mark Rutledge | 2000-07-25 |
| D419474 | Remote control transmitter | Glenn Busse, Mark Rutledge | 2000-01-25 |
| 5990786 | Advanced method of indicating incoming threat level to an electronically secured vehicle and apparatus therefor | Jerry W. Birchfield | 1999-11-23 |
| 5952933 | System having advanced embedded code hopping encryption and learn mode therefor | Jerry W. Birchfield, Charles Chen | 1999-09-14 |
| 5945936 | Learn mode for remote transmitters | — | 1999-08-31 |
| 5914667 | Advanced embedded code hopping system having master fixed code encryption | Jerry W. Birchfield, Charles Chen | 1999-06-22 |
| 5907195 | Channel expander for remotely controlled automotive security and convenience systems | Jerry W. Birchfield, Glenn Busse, Mark Rutledge | 1999-05-25 |
| 5900806 | Alarm sensor multiplexing | Jerry W. Birchfield | 1999-05-04 |
| 5872519 | Advanced embedded code hopping system | Jerry W. Birchfield, Charles Chen | 1999-02-16 |
| 5798711 | High throughput embedded code hopping system with bypass mode | Jerry W. Birchfield, Charles Chen | 1998-08-25 |
| 5783989 | Alarm sensor multiplexing | Jerry W. Birchfiled | 1998-07-21 |
| 5764026 | Spare cellular telephone charging unit | — | 1998-06-09 |
| D392944 | Remote control transmitter | — | 1998-03-31 |
| D390830 | Remote control transmitter | — | 1998-02-17 |
| 5712638 | Multiple transmission channel group transmitter | — | 1998-01-27 |
| D383689 | Security system housing | — | 1997-09-16 |
| D383690 | Security system housing and siren | — | 1997-09-16 |
| 5646591 | Advanced method of indicating incoming threat level to an electronically secured vehicle and apparatus therefor | Jerry W. Birchfield | 1997-07-08 |
| 5534845 | Advanced automotive automation and security system | Jerry W. Birchfield, Glenn Busse, Sidney B. Perdue, Kenneth A. Ward | 1996-07-09 |
| 5532670 | Method of indicating the threat level of an incoming shock to an electronically secured vehicle and apparatus therefore | Jerry W. Birchfield | 1996-07-02 |
| D352685 | Slide-together relay socket | — | 1994-11-22 |
| D348622 | Vehicle alarm case module | — | 1994-07-12 |
| D347190 | Vehicle alarm transmitter | — | 1994-05-24 |
| D345711 | Vehicle alarm case module | — | 1994-04-05 |