Springett; Frank B.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Springett; Frank B..The latest application filed is for "slow-shift spm valve".
- Springett; Frank B. - Spring TX
- Springett; Frank B. - Houston TX
| Patent | Date |
|---|---|
| Slow-shift Spm Valve App 20190264829 - Landrith, II; James Ray ; et al. | 2019-08-29 |
| Slow-shift SPM valve Grant 10,337,638 - Landrith, II , et al. | 2019-07-02 |
| Blowout preventer monitoring system and method of using same Grant 10,000,987 - Springett , et al. June 19, 2 | 2018-06-19 |
| Wellsite connector with floating seal member and method of using same Grant 9,869,148 - Jahnke , et al. January 16, 2 | 2018-01-16 |
| Slow-Shift SPM Valve App 20160153578 - Landrith, II; James Ray ; et al. | 2016-06-02 |
| Dual gradient drilling system Grant 9,249,637 - Springett , et al. February 2, 2 | 2016-02-02 |
| Wellsite Connector With Floating Seal Member And Method Of Using Same App 20150083430 - Jahnke; Douglas A. ; et al. | 2015-03-26 |
| Blowout Preventer Monitoring System And Method Of Using Same App 20140231075 - Springett; Frank B. ; et al. | 2014-08-21 |
| Dual Gradient Drilling System App 20140102789 - SPRINGETT; Frank B. ; et al. | 2014-04-17 |
| Subsea pressure accumulator systems Grant 7,520,129 - Springett April 21, 2 | 2009-04-21 |
| Subsea pressure accumulator systems App 20080104951 - Springett; Frank B. | 2008-05-08 |
| BOP operating system with quick dump valve Grant 6,779,543 - Hollister , et al. August 24, 2 | 2004-08-24 |
| Bop Operating System With Quick Dump Valve App 20040107991 - Hollister, F. Harold ; et al. | 2004-06-10 |
| BOP operating system with quick dump valve Grant 6,655,405 - Hollister , et al. December 2, 2 | 2003-12-02 |
| BOP operating system with quick dump valve App 20020100501 - Hollister, F. Harold ; et al. | 2002-08-01 |
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