Spence; Dean
Patent Applications and Registrations
Patent applications and USPTO patent grants for Spence; Dean.The latest application filed is for "dual coiled tubing head".
- Spence; Dean - Sylvan Lake CA
| Patent | Date |
|---|---|
| Dual coiled tubing head Grant 10,385,629 - Spence , et al. A | 2019-08-20 |
| Dual Coiled Tubing Head App 20170254178 - SPENCE; Dean ; et al. | 2017-09-07 |
| Method of sealing annular space between inner and outer upright tubes Grant 8,439,120 - Spence , et al. May 14, 2 | 2013-05-14 |
| Coil tubing cable head with tool release, fluid circulation and cable protection features Grant 8,281,851 - Spence October 9, 2 | 2012-10-09 |
| Coil Tubing Cable Head with Tool Release, Fluid Circulation and Cable Protection Features App 20120018142 - Spence; Dean | 2012-01-26 |
| Method of Sealing Annular Space Between Inner and Outer Upright Tubes App 20110127045 - Spence; Dean ; et al. | 2011-06-02 |
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