Holt; James H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Holt; James H..The latest application filed is for "insert gas lift injection assembly for retrofitting string for alternative injection location".
- Holt; James H. - Willis TX
- Holt; James H. - Conroe TX
| Patent | Date |
|---|---|
| Insert gas lift injection assembly for retrofitting string for alternative injection location Grant 8,631,875 - Nguyen , et al. January 21, 2 | 2014-01-21 |
| Insert Gas Lift Injection Assembly for Retrofitting String for Alternative Injection Location App 20120312554 - Nguyen; Hai H. ; et al. | 2012-12-13 |
| Retaining lines in bypass groove on downhole equipment Grant 7,431,082 - Holt , et al. October 7, 2 | 2008-10-07 |
| Mono-trip cement thru completion Grant 7,373,980 - Lewis , et al. May 20, 2 | 2008-05-20 |
| Barrier orifice valve for gas lift Grant 7,360,602 - Kritzler , et al. April 22, 2 | 2008-04-22 |
| Barrier orifice valve for gas lift App 20070181312 - Kritzler; James H. ; et al. | 2007-08-09 |
| Retaining lines in bypass groove on downhole equipment App 20070039727 - Holt; James H. ; et al. | 2007-02-22 |
| Mono-trip cement thru completion App 20070029092 - Lewis; Keith E. ; et al. | 2007-02-08 |
| Plunger with multiple jackets Grant 7,093,652 - Gray , et al. August 22, 2 | 2006-08-22 |
| Mono-trip cement thru completion Grant 7,069,992 - Lewis , et al. July 4, 2 | 2006-07-04 |
| Plunger with flow passage and chamber App 20050056416 - Gray, William R. ; et al. | 2005-03-17 |
| Mono-trip cement thru completion App 20040112606 - Lewis, Keith E. ; et al. | 2004-06-17 |
| Plunger with flow passage and improved stopper Grant 6,725,916 - Gray , et al. April 27, 2 | 2004-04-27 |
| Plunger with flow passage and improved stopper App 20030155117 - Gray, William R. ; et al. | 2003-08-21 |
| Plunger with multiple jackets App 20030155116 - Gray, William R. ; et al. | 2003-08-21 |
| Plunger with novel sealing App 20030155129 - Gray, William R. ; et al. | 2003-08-21 |
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