Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7170998 | Door access control and key management system and the method thereof | Michael Caughey | 2007-01-30 |
| 4593192 | Electronic circuit module and holder therefor | Peter F. Slattery, William R. Foster, James K. Fraser | 1986-06-03 |