| 12385604 |
Re-couping actuating media used to operate a control valve |
John Dee Kelley, Chengbao Wang, Vinh Do, Melissa Allin |
2025-08-12 |
| 12253100 |
Eliminating bleed on flow controls |
— |
2025-03-18 |
| 12078263 |
Monitoring energy use on flow controls |
— |
2024-09-03 |
| 11306748 |
Constructing valve positioners for hazardous areas |
Jonathan Fredric Cohen, Jagadish Gattu, Lei Lu, Anatoly Podpaly, Paul T. Tirrell |
2022-04-19 |
| 10851502 |
Solar powered illuminated safety marker and improved housing therefor |
— |
2020-12-01 |
| 10670054 |
Constructing valve positioners for hazardous areas |
Jonathan Fredric Cohen, Jagdish Gattu, Lei Lu, Anatoly Podpaly, Paul T. Tirrell |
2020-06-02 |
| 10488855 |
System and method to monitor characteristics of an operating fluid in a process line |
Edward James Nieters, Frederick Wilson Wheeler |
2019-11-26 |
| 9803777 |
Attenuating device for valve assembly |
Kevin Mackie |
2017-10-31 |
| 9638344 |
System and method to monitor characteristics of an operating fluid in a process line |
Edward James Nieters, Frederick Wilson Wheeler |
2017-05-02 |
| 9304053 |
System to monitor performance of packing material in a seal |
Edward James Nieters, Frederick Wilson Wheeler |
2016-04-05 |
| 7493195 |
Fluid regulation control |
Peter Levesque |
2009-02-17 |
| 7480487 |
Power regulation for field instruments |
Peter Levesque |
2009-01-20 |
| 6957127 |
Dynamic current-to-pneumatic converter and pneumatic amplifier |
Chuhe Zhou |
2005-10-18 |
| 5993162 |
Ramped dovetail rails for rotor blade assembly |
Michael A. Weisse, David M. Daley |
1999-11-30 |
| 5431542 |
Ramped dovetail rails for rotor blade assembly |
Michael A. Weisse, David M. Daley |
1995-07-11 |
