Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D388094 | Combined speaker and microphone | Masaru Tokiyama, David I. Blatt, Michael Henning | 1997-12-23 |
| 5593604 | Method of resistance welding thin elements | Michael Kirschner, Robert A. Charles, Sacha C. Hall | 1997-01-14 |
| 5491478 | Seal membrane with integral microphone support | Juan B. de la Luz, John C. Dzung, Orlando Hernandez | 1996-02-13 |