Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7128376 | Redundant architecture for brake-by-wire system | Aaron Williams, Bryan Anthony Ash, David J. Zwick, David Townsend | 2006-10-31 |
| 7019614 | Door security system audit trail | Gary E. Lavelle | 2006-03-28 |
| 6218955 | Infrared link for security system | — | 2001-04-17 |
| 5988708 | Electromagnetically managed latching exit bar | George Frolov, John E. Walsh, James J. Scott, Gary E. Lavelle | 1999-11-23 |
| 5923264 | Multiple access electronic lock system | Gary E. Lavelle, Brian D. Hass, John E. Walsh | 1999-07-13 |
| 5600529 | Electromagnetic lock | — | 1997-02-04 |
| 5516166 | Electromagnetic lock | George Frolov | 1996-05-14 |
| 5479151 | Electromagnetic door lock with on-board programmable access control | Gary E. Lavelle | 1995-12-26 |