Farquharson; Keith David
Patent Applications and Registrations
Patent applications and USPTO patent grants for Farquharson; Keith David.The latest application filed is for "method and system for fluidly connecting fracturing manifold and fracturing tree".
- Farquharson; Keith David - Edmonton CA
| Patent | Date |
|---|---|
| Expanding gate valve Grant 11,047,486 - Farquharson , et al. June 29, 2 | 2021-06-29 |
| Method and System for Fluidly Connecting Fracturing Manifold and Fracturing Tree App 20210148500 - FARQUHARSON; Keith David ; et al. | 2021-05-20 |
| Ball injector for frac tree Grant 10,731,436 - Allen , et al. | 2020-08-04 |
| Ball Injector for Frac Tree App 20190085657 - ALLEN; Gregory Wayne ; et al. | 2019-03-21 |
| Ball injector for frac tree Grant 10,161,218 - Allen , et al. Dec | 2018-12-25 |
| Expanding Gate Valve App 20180238456 - FARQUHARSON; Keith David ; et al. | 2018-08-23 |
| Ball Injector For Frac Tree App 20170022777 - ALLEN; Gregory Wayne ; et al. | 2017-01-26 |
| Blowout preventer and rams Grant 9,243,469 - Guo , et al. January 26, 2 | 2016-01-26 |
| Blowout Preventer and Rams App 20140299797 - GUO; Tianle ; et al. | 2014-10-09 |
| Blowout preventer and rams Grant 8,783,643 - Guo , et al. July 22, 2 | 2014-07-22 |
| Wellhead pipe coupling Grant 8,602,458 - Rodgers , et al. December 10, 2 | 2013-12-10 |
| Blowout Preventer And Rams App 20130126763 - GUO; Tianle ; et al. | 2013-05-23 |
| Wellhead connection Grant 8,403,057 - Rodgers , et al. March 26, 2 | 2013-03-26 |
| Wellhead Pipe Coupling App 20110037251 - RODGERS; Doyle W. ; et al. | 2011-02-17 |
| Wellhead Connection App 20110036589 - RODGERS; Doyle W. ; et al. | 2011-02-17 |
| Wellhead assembly for hydraulic pumping system Grant 7,610,956 - Farquharson , et al. November 3, 2 | 2009-11-03 |
| Casing adapter tool for well servicing Grant 7,069,987 - Kwasniewski , et al. July 4, 2 | 2006-07-04 |
| Y-body Christmas tree for use with coil tubing Grant 6,851,478 - Cornelssen , et al. February 8, 2 | 2005-02-08 |
| Casing adapter tool for well servicing App 20040173348 - Kwasniewski, Nathan ; et al. | 2004-09-09 |
| Y-body Christmas tree for use with coil tubing App 20040154790 - Cornelssen, Michael James ; et al. | 2004-08-12 |
| Tubing hanger and adapter assembly Grant 6,688,386 - Cornelssen , et al. February 10, 2 | 2004-02-10 |
| Tubing hanger and adapter assembly App 20030136556 - Cornelssen, Michael James ; et al. | 2003-07-24 |
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