Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8922362 | Temporal horn pattern synchronization | Erik S. Johnson | 2014-12-30 |
| 8717168 | Method and apparatus for providing an ASIC controlled alarm unit | Shawn Patrick Keeney, Joseph Kosich, Luy B. Nguyen, Erik Johnson | 2014-05-06 |
| 7830252 | Method and apparatus for providing an ASIC controlled alarm unit | Shawn Patrick Keeney, Joseph Kosich, Luy B. Nguyen, Erik Johnson | 2010-11-09 |