Gerrard; David P.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Gerrard; David P..The latest application filed is for "method and apparatus for thermally actuating and unactuating downhole tools".

Company Profile

0.23.27

Gerrard; David P. - Montgomery TX
Gerrard; David P. - Magnolia TX

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Apparatus for subterranean tool actuation using stored torsional spring energy Grant 9,624,744 - Gerrard April 18, 2	2017-04-18
Confined volume pressure compensation due to thermal loading Grant 9,488,030 - Wood , et al. November 8, 2	2016-11-08
Method And Apparatus For Thermally Actuating And Unactuating Downhole Tools App 20150354304 - Wood; Edward ; et al.	2015-12-10
Shape memory polyphenylene sulfide manufacturing, process, and composition Grant 9,144,925 - Ren , et al. September 29, 2	2015-09-29
Self-inhibited swell packer compound Grant 9,090,812 - Gerrard , et al. July 28, 2	2015-07-28
Method and apparatus for selectively controlling fluid flow Grant 9,051,819 - Sadana , et al. June 9, 2	2015-06-09
Restriction engaging system Grant 9,038,656 - Gerrard , et al. May 26, 2	2015-05-26
Confined Volume Pressure Compensation Due to Thermal Loading App 20150114621 - Wood; Edward T. ; et al.	2015-04-30
Polyarylene compositions, methods of manufacture, and articles thereof Grant 8,940,841 - Duan , et al. January 27, 2	2015-01-27
Shaped memory polyphenylene sulfide (PPS) for downhole packer applications Grant 8,939,222 - Ren , et al. January 27, 2	2015-01-27
Method and Apparatus for Subterranean Tool Actuation Using Stored Torsional Spring Energy App 20150021012 - Gerrard; David P.	2015-01-22
Reactive Choke For Automatic Wellbore Fluid Management And Methods Of Using Same App 20140352974 - GERRARD; DAVID P. ; et al.	2014-12-04
Downhole fluid separation system and method Grant 8,876,944 - Ren , et al. November 4, 2	2014-11-04
Polyarylene compositions for downhole applications, methods of manufacture, and uses thereof Grant 8,829,119 - Duan , et al. September 9, 2	2014-09-09
Annular pressure regulating diaphragm and methods of using same Grant 8,739,889 - Gerrard , et al. June 3, 2	2014-06-03
Crosslinked blends of polyphenylene sulfide and polyphenylsulfone for downhole applications, methods of manufacture, and uses thereof Grant 8,604,157 - Gerrard , et al. December 10, 2	2013-12-10
Downhole Fluid Separation System And Method App 20130180401 - Ren; Jiaxiang ; et al.	2013-07-18
Shape Memory Polyphenylene Sulfide Manufacturing, Process, And Composition App 20130168894 - Ren; Jiaxiang ; et al.	2013-07-04
Self-inhibited Swell Packer Compound App 20130146312 - Gerrard; David P. ; et al.	2013-06-13
Reactive Choke For Automatic Wellbore Fluid Management And Methods Of Using Same App 20130126184 - Gerrard; David P. ; et al.	2013-05-23
Crosslinked Blends Of Polyphenylene Sulfide And Polyphenylsulfone For Downhole Applications, Methods Of Manufacture, And Uses Thereof App 20130131210 - Gerrard; David P. ; et al.	2013-05-23
Polyarylene Compositions For Downhole Applications, Methods Of Manufacture, And Uses Thereof App 20130079427 - Duan; Ping ; et al.	2013-03-28
Polyarylene Compositions, Methods Of Manufacture, And Articles Thereof App 20130079432 - DUAN; Ping ; et al.	2013-03-28
Shaped Memory Polyphenylene Sulfide (pps) For Downhole Packer Applications App 20130062049 - Ren; Jiaxiang ; et al.	2013-03-14
Method And Apparatus For Selectively Controlling Fluid Flow App 20130048129 - Sadana; Anil K. ; et al.	2013-02-28
Annular Pressure Regulating Diaphragm And Methods Of Using Same App 20130032354 - GERRARD; DAVID P. ; et al.	2013-02-07
Selectively movable seat arrangement and method Grant 8,261,761 - Gerrard , et al. September 11, 2	2012-09-11
Restriction Engaging System App 20120097265 - Gerrard; David P. ; et al.	2012-04-26
Selectively movable seat arrangement and method App 20100282338 - Gerrard; David P. ; et al.	2010-11-11

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