Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6216794 | Joystick control for an automatic depth control system and method | — | 2001-04-17 |
| 6216795 | Ultrasonic transducer based device positioning system and method | — | 2001-04-17 |
| 6164385 | Automatic depth control system and method | — | 2000-12-26 |
| 6085846 | Potentiometer-based gauge wheel device positioning system and method | Joseph W. Trudeau, Joseph Truhe | 2000-07-11 |
| 4825655 | Master/slave hydraulic system with rebound compensation | John C. Stephenson | 1989-05-02 |
| 4646620 | Automatic depth control system | — | 1987-03-03 |
| 4622884 | Floating piston depth control apparatus | — | 1986-11-18 |
| 4423664 | Depth control apparatus | — | 1984-01-03 |