Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741718 | Near-field speaker/microphone acoustic/seismic dampening communication device | Marcia Brumitt, Medford Alan Dyer | 2004-05-25 |
| 6688421 | Earmold for improved retention of coupled device | Medford Alan Dyer, Daniel W. Mauney, Thomas Henry Perszyk | 2004-02-10 |