Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831568 | Method and apparatus for visual silent alarm indicator | Michael Cortopassi, Eric Fuhs, Thomas Robinson, Edward Endejan | 2004-12-14 |
| 6725109 | Sound generator circuit system and method | James B. Henrie | 2004-04-20 |