Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6775389 | Ear auxiliary microphone for behind the ear hearing prosthetic | William Vanbrooks Harrison, Philip A. Segel, Scott A. Crawford, C. Geoffrey E Fernald | 2004-08-10 |
| 6707023 | Differential photoelectric receiver circuit | Kai D. Fong | 2004-03-16 |