Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6585075 | Hearing aid having hard mounted speaker and energy absorbing tip | — | 2003-07-01 |
| 5537477 | Frequency characteristic shaping circuitry and method | J. William Mauchly | 1996-07-16 |
| 5321758 | Power efficient hearing aid | Albert J. Charpentier, Duane J. Loeper, Brian McLaughlin, David W. DiOrio | 1994-06-14 |
| 5195139 | Hearing aid | — | 1993-03-16 |
| 5111506 | Power efficient hearing aid | Albert J. Charpentier, Duane J. Loeper, Brian McLaughlin, David W. DiOrio | 1992-05-05 |
| 4520236 | Sound transfer from a hearing aid to the human ear drum | — | 1985-05-28 |