McKeachnie; John W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for McKeachnie; John W..The latest application filed is for "convertible seal".
- McKeachnie; John W. - Vernal UT
- McKeachnie; John W. - West Vernal UT
| Patent | Date |
|---|---|
| Convertible seal Grant 7,896,091 - Williamson , et al. March 1, 2 | 2011-03-01 |
| Convertible Seal App 20090178808 - Williamson; Scott E. ; et al. | 2009-07-16 |
| Convertible seal Grant 7,510,018 - Williamson , et al. March 31, 2 | 2009-03-31 |
| Method and apparatus for friction reduction in a downhole tool Grant 7,434,627 - Turley , et al. October 14, 2 | 2008-10-14 |
| Convertible Seal App 20080169105 - Williamson; Scott E. ; et al. | 2008-07-17 |
| Method and apparatus for friction reduction in a downhole tool App 20060278405 - Turley; Rocky A. ; et al. | 2006-12-14 |
| SEC | 0001643280 | McKeachnie John W |
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