Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6393129 | Paper structures for speaker transducers | Terry J. Conrad, Elwood G. Norris | 2002-05-21 |
| 6389146 | Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters | — | 2002-05-14 |