Johnston; Russell A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Johnston; Russell A..The latest application filed is for "flapper retention devices and methods".
- Johnston; Russell A. - Alvin TX US
- Johnston; Russell A. - Houston TX
- Johnston; Russell A. - Lewisville TX
| Patent | Date |
|---|---|
| Flapper Retention Devices And Methods App 20130341034 - Biddick; David James ; et al. | 2013-12-26 |
| Flow Tube For Use In Subsurface Valves App 20120031624 - Goughnour; Paul G. ; et al. | 2012-02-09 |
| Downhole Tool Actuation Devices And Methods App 20110083858 - Johnston; Russell A. ; et al. | 2011-04-14 |
| Pressure relief actuated valves Grant 7,740,075 - Goughnour , et al. June 22, 2 | 2010-06-22 |
| Pressure Relief Actuated Valves App 20100006295 - GOUGHNOUR; Paul G. ; et al. | 2010-01-14 |
| Fluid communication nipple having an interior passageway with an interior wall section that may be opened to establish fluid communication with the passageway Grant 7,621,331 - Mescall , et al. November 24, 2 | 2009-11-24 |
| Fluid Communication Nipple App 20080236827 - Mescall; Stephen ; et al. | 2008-10-02 |
| Fluid Communication Nipple App 20060076136 - Mescall; Stephen ; et al. | 2006-04-13 |
| Apparatus and methods for establishing secondary hydraulics in a downhole tool Grant 6,973,970 - Johnston , et al. December 13, 2 | 2005-12-13 |
| Apparatus and methods for establishing secondary hydraulics in a downhole tool App 20030234104 - Johnston, Russell A. ; et al. | 2003-12-25 |
| Pressure equalizing safety valve for subterranean wells Grant 6,079,497 - Johnston , et al. June 27, 2 | 2000-06-27 |
| Subsurface safety valve Grant 5,598,864 - Johnston , et al. February 4, 1 | 1997-02-04 |
| Dump and kill valve for a sidepocket mandrel Grant 4,651,822 - Johnston , et al. March 24, 1 | 1987-03-24 |
| Soft set and pull latch and setting tool for a well measuring instrument Grant 4,538,681 - Johnston September 3, 1 | 1985-09-03 |
| Chemical injection valve with openable bypass Grant 4,399,871 - Adkins , et al. August 23, 1 | 1983-08-23 |
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