Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6442279 | Acoustic conditioner | David A. Preves, Robert L. Millier, Ning Shen | 2002-08-27 |
| 6424722 | Portable system for programming hearing aids | David A. Preves | 2002-07-23 |
| 6389142 | In-the-ear hearing aid with directional microphone system | David A. Preves | 2002-05-14 |
| 6359992 | Acoustics conditioner | David A. Preves, Robert L. Millier, Ning Shen | 2002-03-19 |