Macdonald; Duncan Charles

Patent Applications and Registrations

Patent applications and USPTO patent grants for Macdonald; Duncan Charles.The latest application filed is for "methods and systems for drilling".

Company Profile

1.22.24

Macdonald; Duncan Charles - Houston 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
Methods and systems for drilling Grant 10,415,365 - Edbury , et al. Sept	2019-09-17
Methods and systems for drilling Grant 9,879,490 - Edbury , et al. January 30, 2	2018-01-30
Methods And Systems For Drilling App 20170260822 - EDBURY; David Alston ; et al.	2017-09-14
Methods and systems for picking up a drill bit Grant 9,683,418 - Edbury , et al. June 20, 2	2017-06-20
Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations Grant 9,528,322 - MacDonald December 27, 2	2016-12-27
Methods and systems for drilling Grant 9,470,052 - Edbury , et al. October 18, 2	2016-10-18
Mechanized Slot Drilling App 20160230523 - FONSECA OCAMPOS; Ernesto Rafael ; et al.	2016-08-11
Systems and methods of forming subsurface wellbores Grant 9,129,728 - Edbury , et al. September 8, 2	2015-09-08
Mechanized Slot Drilling App 20150096806 - FONSECA OCAMPOS; Ernesto Rafael ; et al.	2015-04-09
Methods and systems for drilling Grant 8,939,233 - Edbury , et al. January 27, 2	2015-01-27
Dual Motor Systems And Non-rotating Sensors For Use In Developing Wellbores In Subsurface Formations App 20150021094 - MacDonald; Duncan Charles	2015-01-22
Monitoring Of Drilling Operations With Flow And Density Measurement App 20140291023 - Edbury; s Alston ; et al.	2014-10-02
Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations Grant 8,752,904 - Burns , et al. June 17, 2	2014-06-17
Methods for heating with slots in hydrocarbon formations Grant 8,739,874 - Ocampos , et al. June 3, 2	2014-06-03
Methods And Systems For Drilling App 20140041941 - EDBURY; David Alston ; et al.	2014-02-13
Mines and tunnels for use in treating subsurface hydrocarbon containing formations Grant 8,636,323 - Prince-Wright , et al. January 28, 2	2014-01-28
Methods And Systems For Drilling App 20130277111 - EDBURY; David Alston ; et al.	2013-10-24
Methods And Systems For Drilling App 20130277112 - EDBURY; David Alston ; et al.	2013-10-24
Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations Grant 8,562,078 - Burns , et al. October 22, 2	2013-10-22
Methods and systems for drilling Grant 8,561,720 - Edbury , et al. October 22, 2	2013-10-22
Methods And Systems For Drilling App 20130270005 - EDBURY; David Alston ; et al.	2013-10-17
Methods And Systems For Drilling App 20130032401 - EDBURY; David Alston ; et al.	2013-02-07
Methods And Systems For Drilling App 20130032407 - EDBURY; David Alston ; et al.	2013-02-07
Wellbore manufacturing processes for in situ heat treatment processes Grant 8,327,681 - Davidson , et al. December 11, 2	2012-12-11
Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations Grant 8,177,305 - Burns , et al. May 15, 2	2012-05-15
Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations Grant 8,172,335 - Burns , et al. May 8, 2	2012-05-08
Using tunnels for treating subsurface hydrocarbon containing formations Grant 8,162,405 - Burns , et al. April 24, 2	2012-04-24
Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations Grant 8,151,907 - MacDonald April 10, 2	2012-04-10
Methods For Heating With Slots In Hydrocarbon Formations App 20110247810 - Ocampos; Ernesto Rafael Fonseca ; et al.	2011-10-13
Systems And Methods Of Forming Subsurface Wellbores App 20100108379 - Edbury; David Alston ; et al.	2010-05-06
Mines And Tunnels For Use In Treating Subsurface Hydrocarbon Containing Formations App 20100071903 - Prince-Wright; Robert George ; et al.	2010-03-25
Hydrocarbon Production From Mines And Tunnels Used In Treating Subsurface Hydrocarbon Containing Formations App 20100071904 - Burns; David Booth ; et al.	2010-03-25
Heater Connections In Mines And Tunnels For Use In Treating Subsurface Hydrocarbon Containing Formations App 20090272536 - Burns; David Booth ; et al.	2009-11-05
Electrical Current Flow Between Tunnels For Use In Heating Subsurface Hydrocarbon Containing Formations App 20090272526 - Burns; David Booth ; et al.	2009-11-05
Heated Fluid Flow In Mines And Tunnels Used In Heating Subsurface Hydrocarbon Containing Formations App 20090272533 - Burns; David Booth ; et al.	2009-11-05
Dual Motor Systems And Non-rotating Sensors For Use In Developing Wellbores In Subsurface Formations App 20090272578 - MacDonald; Duncan Charles	2009-11-05
Using Tunnels For Treating Subsurface Hydrocarbon Containing Formations App 20090272535 - Burns; David Booth ; et al.	2009-11-05
Mines And Tunnels For Use In Treating Subsurface Hydrocarbon Containing Formations App 20090260823 - Prince-Wright; Robert George ; et al.	2009-10-22
Hydrocarbon Production From Mines And Tunnels Used In Treating Subsurface Hydrocarbon Containing Formations App 20090260824 - Burns; David Booth ; et al.	2009-10-22
Wellbore Manufacturing Processes For In Situ Heat Treatment Processes App 20090090158 - Davidson; Ian Alexander ; et al.	2009-04-09

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