Helfer; Wade Jonathon
Patent Applications and Registrations
Patent applications and USPTO patent grants for Helfer; Wade Jonathon.The latest application filed is for "methods and apparatus to load a valve packing".
- Helfer; Wade Jonathon - Ames IA
| Patent | Date |
|---|---|
| Methods and apparatus to load a valve packing Grant 11,143,314 - Jackson , et al. October 12, 2 | 2021-10-12 |
| Methods And Apparatus To Load A Valve Packing App 20210301931 - Jackson; Trenton Frank ; et al. | 2021-09-30 |
| Bushing having a shaft seal Grant 10,969,030 - Jackson , et al. April 6, 2 | 2021-04-06 |
| Valve Body Insert Apparatus And Related Methods App 20210025498 - Helfer; Wade Jonathon | 2021-01-28 |
| Valve body insert apparatus and related methods Grant 10,844,962 - Helfer November 24, 2 | 2020-11-24 |
| Bushing Having A Shaft Seal App 20190162325 - Jackson; Trenton Frank ; et al. | 2019-05-30 |
| Valve Body Insert Apparatus And Related Methods App 20170102075 - Helfer; Wade Jonathon | 2017-04-13 |
| Flexible seals for process control valves Grant 9,587,747 - Helfer , et al. March 7, 2 | 2017-03-07 |
| Valve seals Grant 9,568,110 - Helfer February 14, 2 | 2017-02-14 |
| Flexible Seals For Process Control Valves App 20150369371 - Helfer; Wade Jonathon ; et al. | 2015-12-24 |
| Flexible seals for process control valves Grant 9,127,775 - Helfer , et al. September 8, 2 | 2015-09-08 |
| Valve Seals App 20140319399 - Helfer; Wade Jonathon | 2014-10-30 |
| Valve seals Grant 8,814,138 - Helfer August 26, 2 | 2014-08-26 |
| Valve Seals App 20130092859 - Helfer; Wade Jonathon | 2013-04-18 |
| Collets for use with valves Grant 8,408,837 - Helfer , et al. April 2, 2 | 2013-04-02 |
| Flexible Seals For Process Control Valves App 20120319022 - Helfer; Wade Jonathon ; et al. | 2012-12-20 |
| Flexible seals for process control valves Grant 8,286,938 - Helfer , et al. October 16, 2 | 2012-10-16 |
| Rotary actuator lever apparatus having an annular recess Grant 8,096,526 - Helfer January 17, 2 | 2012-01-17 |
| Control valve having "C" seal Grant 8,011,386 - Gossett , et al. September 6, 2 | 2011-09-06 |
| "Collets for Use with Valves" App 20100108930 - Helfer; Wade Jonathon ; et al. | 2010-05-06 |
| Rotary Actuator Lever Apparatus Having an Annular Recess App 20100108929 - Helfer; Wade Jonathon | 2010-05-06 |
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