Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830876 | Acoustic resistor for hearing improvement and audiometric applications, and method of making same | Andrew J. Haapapuro | 2004-12-14 |
| 6831987 | Directional microphone assembly | Jonathan K. Stewart, Don Wilson, Matthew Roberts, Steve Iseberg, Timothy S. Monroe | 2004-12-14 |
| 6798890 | Directional microphone assembly | Robert B. Schulein, Timothy S. Monroe, Viorel Drambarean, Andrew J. Haapapuro, John S. French | 2004-09-28 |
| 6704424 | Hearing aid with audible alarm | — | 2004-03-09 |