Isenhour; James D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Isenhour; James D..The latest application filed is for "method and apparatus for reaming well bore surfaces nearer the center of drift".
- Isenhour; James D. - Windsor CO
| Patent | Date |
|---|---|
| Valve assembly Grant 10,161,530 - Isenhour , et al. Dec | 2018-12-25 |
| Method And Apparatus For Reaming Well Bore Surfaces Nearer The Center Of Drift App 20170370157 - Isenhour; James D. | 2017-12-28 |
| Method And Apparatus For Steering A Drill String And Reaming Well Bore Surfaces Nearer The Center Of Drift App 20170241207 - Meier; Gilbert Troy ; et al. | 2017-08-24 |
| Method and apparatus for reaming well bore surfaces nearer the center of drift Grant 9,739,092 - Isenhour August 22, 2 | 2017-08-22 |
| Valve Assembly App 20160356387 - Isenhour; James D. ; et al. | 2016-12-08 |
| Wellbore Conditioning System App 20160208559 - Isenhour; James D. ; et al. | 2016-07-21 |
| Wellbore conditioning system Grant 9,163,460 - Isenhour , et al. October 20, 2 | 2015-10-20 |
| Valve Assembly App 20150211653 - Isenhour; James D. ; et al. | 2015-07-30 |
| Valve assembly Grant 9,010,370 - Isenhour , et al. April 21, 2 | 2015-04-21 |
| Method And Apparatus For Reaming Well Bore Surfaces Nearer The Center Of Drift App 20140284109 - Isenhour; James D. | 2014-09-25 |
| Method and apparatus for reaming well bore surfaces nearer the center of drift Grant 8,752,649 - Isenhour June 17, 2 | 2014-06-17 |
| Low-friction, Abrasion Resistant Replaceable Bearing Surface App 20140064646 - Meier; Gilbert Troy ; et al. | 2014-03-06 |
| Valve Assembly App 20140014866 - Isenhour; James D. ; et al. | 2014-01-16 |
| Wellbore Conditioning System App 20130180779 - Isenhour; James D. ; et al. | 2013-07-18 |
| Method and Apparatus for Reaming Well Bore Surfaces Nearer the Center of Drift App 20120255786 - Isenhour; James D. | 2012-10-11 |
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