Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673041 | Reflective mode ultrasonic touch sensitive switch | Joseph V. Chatigny, Kyung-Tae Park | 1997-09-30 |
| 5608692 | Multi-layer polymer electroacoustic transducer assembly | — | 1997-03-04 |