Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9923418 | Wireless power transfer for process control | — | 2018-03-20 |
| 9194501 | Pressure balanced spring loaded overtravel sealing apparatus | Thomas Henry Cunningham, Christopher Edward Wolfe, Nuo Sheng, Xuele Qi, Azam Mihir Thatte +1 more | 2015-11-24 |
| 9068669 | Process fluid actuated pilot operated control valve | James Stares | 2015-06-30 |
| 8655494 | Fluid process control | — | 2014-02-18 |
| 7890216 | Control valve and positioner diagnostics | Sandro Esposito | 2011-02-15 |
| 7818093 | Controlling fluid regulation | — | 2010-10-19 |
| 7539560 | Control valve and positioner diagnostics | Sandro Esposito | 2009-05-26 |
| 6917858 | Fluid regulation | — | 2005-07-12 |
| 6880579 | Noise reduction device for fluid flow systems | — | 2005-04-19 |
| 6807986 | Noise reduction device for fluid flow systems | — | 2004-10-26 |
| 6745084 | Valve positioner system | Christopher Colwell, Peter Levesque, Larry Gene Schoonover, Raymond Villier, Denis Vital +2 more | 2004-06-01 |
| 6453261 | Valve positioner system | Christopher Colwell, Peter Levesque, Larry Gene Schoonover, Raymond Villier, Denis Vital +2 more | 2002-09-17 |
| 6272401 | Valve positioner system | Christopher Colwell, Peter Levesque, Larry Gene Schoonover, Raymond Villier, Denis Vital +2 more | 2001-08-07 |
| 5988586 | Low noise ball valve assembly with downstream insert | — | 1999-11-23 |
| 5890505 | Low noise ball valve assembly with downstream airfoil insert | — | 1999-04-06 |
| 5771929 | Low noise ball valve assembly with airfoil insert | — | 1998-06-30 |
| 5728942 | Fluid pressure measuring system for control valves | — | 1998-03-17 |
| 5680889 | Low noise ball valve assembly | — | 1997-10-28 |
| 5190264 | Adjustable valve packing arrangement | — | 1993-03-02 |