Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5140560 | Pressure compensated transducer system with constrained diaphragm | — | 1992-08-18 |
| 5105394 | Constrained diaphragm transducer | — | 1992-04-14 |
| 5103432 | Expendable sound source | — | 1992-04-07 |
| 4216766 | Treatment of body tissue by means of internal cavity resonance | Ludwig R. Duykers | 1980-08-12 |