Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9880305 | Method of passive acoustic depth determination in shallow water | Laurie T. Fialkowski | 2018-01-30 |
| 8374055 | Acoustic communication and locating devices for underground mines | Tsih C. Yang | 2013-02-12 |
| 7471592 | Method and apparatus for passive acoustic ranging | — | 2008-12-30 |
| 5815465 | Method and apparatus of classifying marine sediment | — | 1998-09-29 |
| 5142500 | Non-destructive method of measuring physical characteristics of sediments | Tokuo Yamamoto | 1992-08-25 |