Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7359773 | Wireless relay for payment enforcement devices and method of using same | Franklin C. Simon | 2008-04-15 |
| 7266507 | Time-based disablement of equipment | Franklin C. Simon, Ronald Mueller | 2007-09-04 |
| 6870467 | Tampering detector and system disabler | — | 2005-03-22 |
| 6828692 | Tampering detector and system disabler | — | 2004-12-07 |
| 6717527 | Vehicle location system | — | 2004-04-06 |
| 6489897 | Vehicle location system | — | 2002-12-03 |
| 4462391 | Radiation receiver | Friedrich Laussermair | 1984-07-31 |