Winkler; Richard J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Winkler; Richard J..The latest application filed is for "vent assembly and method for a digital valve positioner".
- Winkler; Richard J. - Marshalltown IA
| Patent | Date |
|---|---|
| Vent assembly and method for a digital valve positioner Grant 10,228,066 - Winkler , et al. | 2019-03-12 |
| Vent Assembly And Method For A Digital Valve Positioner App 20180283567 - Winkler; Richard J. ; et al. | 2018-10-04 |
| Vent assembly and method for a digital valve positioner Grant 9,989,159 - Winkler , et al. June 5, 2 | 2018-06-05 |
| Vent Assembly And Method For A Digital Valve Positioner App 20150316158 - Winkler; Richard J. ; et al. | 2015-11-05 |
| Integral hall effect limit switch for control valve stem position sensor Grant 7,190,159 - Galbreath , et al. March 13, 2 | 2007-03-13 |
| Integral hall effect limit switch for control valve stem position sensor App 20040183526 - Galbreath, Curt ; et al. | 2004-09-23 |
| Method and apparatus for multiple-input-multiple-output control of a valve/actuator plant Grant 6,644,332 - Winkler November 11, 2 | 2003-11-11 |
| Four mode pneumatic relay Grant 4,974,625 - Paullus , et al. December 4, 1 | 1990-12-04 |
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