Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647781 | Bubble water depth measuring method and system thereof | — | 2003-11-18 |
| 6631097 | Sonic water level measuring method and system there for | — | 2003-10-07 |
| 6474157 | Sonic level measuring method | — | 2002-11-05 |
| 6474174 | Ultrasonic multi-channel flow measuring method | — | 2002-11-05 |
| 6460419 | Ultrasonic flow measuring method | — | 2002-10-08 |
| 6332360 | Apparatus for measuring the depth, water velocity or water temperature of an open channel | — | 2001-12-25 |