Ewan; Robin A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ewan; Robin A..The latest application filed is for "self-anchoring device with force amplification".
- Ewan; Robin A. - Stafford TX
| Patent | Date |
|---|---|
| Self-anchoring device with force amplification Grant 7,854,258 - Sheiretov , et al. December 21, 2 | 2010-12-21 |
| Self-Anchoring Device with Force Amplification App 20090159269 - Sheiretov; Todor K. ; et al. | 2009-06-25 |
| Self-anchoring device with force amplification Grant 7,516,782 - Sheiretov , et al. April 14, 2 | 2009-04-14 |
| Self-anchoring Device With Force Amplification App 20070181298 - Sheiretov; Todor K. ; et al. | 2007-08-09 |
| Traction control for downhole tractor Grant 7,185,714 - Doering , et al. March 6, 2 | 2007-03-06 |
| Traction control for downhole tractor Grant 7,143,843 - Doering , et al. December 5, 2 | 2006-12-05 |
| Traction control for downhole tractor App 20060151212 - Doering; Falk W. ; et al. | 2006-07-13 |
| Traction control for downhole tractor App 20050145415 - Doering, Falk W. ; et al. | 2005-07-07 |
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