Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10851814 | Valve signature diagnosis and leak test device | Jingli Li, Bruce Rigsby, Robert L. LaFountain | 2020-12-01 |
| 10344782 | Valve signature diagnosis and leak test device | Jingli Li, Bruce Rigsby, Robert L. LaFountain | 2019-07-09 |
| 9886835 | Method and apparatus for predicting lifetime of a solenoid coil | Bruce Rigsby | 2018-02-06 |
| 9541214 | Switching module for a valve controller | Robert L. LaFountain, Bruce Rigsby, Scott Carpenter | 2017-01-10 |
| 9460875 | Magnetic switch actuators | Robert L. LaFountain, Michael J. Simmons | 2016-10-04 |
| 9279433 | Poppet valve assembly for controlling a pneumatic actuator | — | 2016-03-08 |
| 9161103 | Switch module | — | 2015-10-13 |
| 8905371 | Valve signature diagnosis and leak test device | Jingli Li, Bruce Rigsby, Robert L. LaFountain | 2014-12-09 |
| 8814133 | Automatic speed searching device and method for a partial stroke test of a control valve | Jingli Li, Bruce Rigsby, Robert L. LaFountain | 2014-08-26 |
| 7980484 | Automatic flow gap adjusting anti-slab method and apparatus | Michael J. Podoll, David P. Beck | 2011-07-19 |