Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5566362 | Wireless voice transmission system | Alfred Bauer, Joseph Birli, Greg Skillicorn, Jose L. Ramos | 1996-10-15 |
| 5463693 | Voice amplification adapter assembly for face mask | Joseph Birli | 1995-10-31 |
| 5428688 | Voice transmission system with remote microphone | Joseph Birli, Alfred Bauer | 1995-06-27 |
| 4876416 | Multiple position rotary switch | Leo R. Frantz, Alfred Bauer, Matthew Koran | 1989-10-24 |