| 9719877 |
Method and apparatus for damping diaphragm vibration in capacitance diaphragm gauges |
— |
2017-08-01 |
| 9683908 |
Method and system for monitoring gas pressure for reference cavity of capacitance diaphragm gauge |
David J. Ferran |
2017-06-20 |
| 9677964 |
Apparatus and method for automatic detection of diaphragm coating or surface contamination for capacitance diaphragm gauges |
David J. Ferran |
2017-06-13 |
| 9360391 |
Multi-axis tilt sensor for correcting gravitational effects on the measurement of pressure by a capacitance diaphragm gauge |
David J. Ferran |
2016-06-07 |
| 8997576 |
Method and system for monitoring gas pressure for reference cavity of capacitance diaphragm gauge |
David J. Ferran |
2015-04-07 |
| 8997548 |
Apparatus and method for automatic detection of diaphragm coating or surface contamination for capacitance diaphragm gauges |
David J. Ferran |
2015-04-07 |
| 8997575 |
Method and apparatus for damping diaphragm vibration in capacitance diaphragm gauges |
— |
2015-04-07 |
| 8965725 |
Automatic calibration adjustment of capacitance diaphragm gauges to compensate for errors due to changes in atmospheric pressure |
David J. Ferran |
2015-02-24 |
| 8901993 |
Method and apparatus for acquiring noise reduced high frequency signals |
— |
2014-12-02 |
| 8862420 |
Multi-axis tilt sensor for correcting gravitational effects on the measurement of pressure by a capacitance diaphragm gauge |
David J. Ferran |
2014-10-14 |
| 8760221 |
Method and apparatus for acquiring noise reduced high frequency signals |
— |
2014-06-24 |
| 8604655 |
Multi-phase permanent magnet brushless DC electric motor |
— |
2013-12-10 |
| 8283831 |
Brushless DC motor having multiple parallel windings |
Ilya Kaminsky |
2012-10-09 |
| 7040244 |
Watercraft having plural narrow hulls and having submerged passive flotation devices |
— |
2006-05-09 |
| 6837112 |
Capacitance manometer having a relatively thick flush diaphragm under tension to provide low hysteresis |
Daniel Rohrbach, Michael Oswald |
2005-01-04 |
| 5857890 |
Residual gas sensor utilizing a miniature quadrupole array |
— |
1999-01-12 |
| 5613294 |
Method of making a residual gas sensor utilizing a miniature quadrupole array |
— |
1997-03-25 |
| 5401962 |
Residual gas sensor utilizing a miniature quadrupole array |
— |
1995-03-28 |
| 5396803 |
Dual balanced capacitance manometers for suppressing vibration effects |
— |
1995-03-14 |
| 4823603 |
Capacitance manometer having stress relief for fixed electrode |
Gordon E. Osterstrom |
1989-04-25 |
| 4720807 |
Adaptive pressure control system |
Anthony J. Tessicini, Timothy Robert Brown |
1988-01-19 |