Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11852762 | System and method to transfer inertial mass | — | 2023-12-26 |
| 11346966 | System and method to transfer inertial mass | — | 2022-05-31 |
| 11092172 | Seismic vibrator servo valve with proportional linear pressure feedback | — | 2021-08-17 |
| 8739680 | Hydraulic pressure feedback for servovalves | — | 2014-06-03 |
| 8323576 | Vapor sensing instrument for ultra trace chemical detection | Craig Aker, Colin J. Cumming, Mark E. Fisher, Michael Fox, Marcus LaGrone +2 more | 2012-12-04 |
| 7419636 | Vapor sensing instruments for ultra trace chemical detection | Craig Aker, Colin J. Cumming, Mark E. Fisher, Michael Fox, Marcus J. IaGrone +2 more | 2008-09-02 |
| 6558626 | Vapor sensing instrument for ultra trace chemical detection | Craig Aker, Colin J. Cumming, Mark E. Fisher, Michael Fox, Marcus LaGrone +2 more | 2003-05-06 |
| 6269733 | Force servo actuator with asymmetric nonlinear differential hydraulic force feedback | — | 2001-08-07 |
| 5128908 | Pressure feedback servovalve for a seismic vibrator | — | 1992-07-07 |
| 4553028 | Apparatus and method for compensating roll of a scanner platform | — | 1985-11-12 |
| 4538230 | Method and apparatus for controlling altitude | John S. Gergely | 1985-08-27 |