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Duncan Charles MacDonald
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Houston, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Methods and systems for drilling
Patent number
10,415,365
Issue date
Sep 17, 2019
Shell Oil Company
David Alston Edbury
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and systems for drilling
Patent number
9,879,490
Issue date
Jan 30, 2018
Shell Oil Company
David Alston Edbury
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and systems for drilling
Patent number
9,822,595
Issue date
Nov 21, 2017
Shell Oil Company
David Alston Edbury
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and systems for picking up a drill bit
Patent number
9,683,418
Issue date
Jun 20, 2017
Shell Oil Company
David Alston Edbury
E21 - EARTH DRILLING MINING
Information
Patent Grant
Dual motor systems and non-rotating sensors for use in developing w...
Patent number
9,528,322
Issue date
Dec 27, 2016
Shell Oil Company
Duncan Charles MacDonald
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Methods and systems for drilling
Patent number
9,470,052
Issue date
Oct 18, 2016
Shell Oil Company
David Alston Edbury
E21 - EARTH DRILLING MINING
Information
Patent Grant
Systems and methods of forming subsurface wellbores
Patent number
9,129,728
Issue date
Sep 8, 2015
Shell Oil Company
David Alston Edbury
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Methods and systems for drilling
Patent number
8,939,233
Issue date
Jan 27, 2015
Shell Oil Company
David Alston Edbury
E21 - EARTH DRILLING MINING
Information
Patent Grant
Heated fluid flow in mines and tunnels used in heating subsurface h...
Patent number
8,752,904
Issue date
Jun 17, 2014
Shell Oil Company
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Methods for heating with slots in hydrocarbon formations
Patent number
8,739,874
Issue date
Jun 3, 2014
Shell Oil Company
Ernesto Rafael Fonseca Ocampos
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mines and tunnels for use in treating subsurface hydrocarbon contai...
Patent number
8,636,323
Issue date
Jan 28, 2014
Shell Oil Company
Robert George Prince-Wright
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Methods and systems for drilling
Patent number
8,561,720
Issue date
Oct 22, 2013
Shell Oil Company
David Alston Edbury
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydrocarbon production from mines and tunnels used in treating subs...
Patent number
8,562,078
Issue date
Oct 22, 2013
Shell Oil Company
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Wellbore manufacturing processes for in situ heat treatment processes
Patent number
8,327,681
Issue date
Dec 11, 2012
Shell Oil Company
Ian Alexander Davidson
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Heater connections in mines and tunnels for use in treating subsurf...
Patent number
8,177,305
Issue date
May 15, 2012
Shell Oil Company
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Electrical current flow between tunnels for use in heating subsurfa...
Patent number
8,172,335
Issue date
May 8, 2012
Shell Oil Company
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Using tunnels for treating subsurface hydrocarbon containing format...
Patent number
8,162,405
Issue date
Apr 24, 2012
Shell Oil Company
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Dual motor systems and non-rotating sensors for use in developing w...
Patent number
8,151,907
Issue date
Apr 10, 2012
Shell Oil Company
Duncan Charles MacDonald
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Ranging methods for developing wellbores in subsurface formations
Patent number
8,011,451
Issue date
Sep 6, 2011
Shell Oil Company
Duncan MacDonald
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Patents Applications
last 30 patents
Information
Patent Application
METHODS AND SYSTEMS FOR DRILLING
Publication number
20170260822
Publication date
Sep 14, 2017
Shell Oil Company
David Alston EDBURY
E21 - EARTH DRILLING MINING
Information
Patent Application
MECHANIZED SLOT DRILLING
Publication number
20160230523
Publication date
Aug 11, 2016
Shell Oil Company
Ernesto Rafael FONSECA OCAMPOS
E21 - EARTH DRILLING MINING
Information
Patent Application
MECHANIZED SLOT DRILLING
Publication number
20150096806
Publication date
Apr 9, 2015
Shell Oil Company
Ernesto Rafael FONSECA OCAMPOS
E21 - EARTH DRILLING MINING
Information
Patent Application
DUAL MOTOR SYSTEMS AND NON-ROTATING SENSORS FOR USE IN DEVELOPING W...
Publication number
20150021094
Publication date
Jan 22, 2015
Shell Oil Company
Duncan Charles MacDonald
E21 - EARTH DRILLING MINING
Information
Patent Application
MONITORING OF DRILLING OPERATIONS WITH FLOW AND DENSITY MEASUREMENT
Publication number
20140291023
Publication date
Oct 2, 2014
s Alston Edbury
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHODS AND SYSTEMS FOR DRILLING
Publication number
20140041941
Publication date
Feb 13, 2014
Shell Oil Company
David Alston EDBURY
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODS AND SYSTEMS FOR DRILLING
Publication number
20130277112
Publication date
Oct 24, 2013
David Alston EDBURY
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODS AND SYSTEMS FOR DRILLING
Publication number
20130277111
Publication date
Oct 24, 2013
David Alston EDBURY
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODS AND SYSTEMS FOR DRILLING
Publication number
20130270005
Publication date
Oct 17, 2013
David Alston EDBURY
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODS AND SYSTEMS FOR DRILLING
Publication number
20130032407
Publication date
Feb 7, 2013
SHELL OIL COMPANY
David Alston EDBURY
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODS AND SYSTEMS FOR DRILLING
Publication number
20130032401
Publication date
Feb 7, 2013
Shell Oil Company
David Alston EDBURY
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODS FOR HEATING WITH SLOTS IN HYDROCARBON FORMATIONS
Publication number
20110247810
Publication date
Oct 13, 2011
Ernesto Rafael Fonseca Ocampos
E21 - EARTH DRILLING MINING
Information
Patent Application
SYSTEMS AND METHODS OF FORMING SUBSURFACE WELLBORES
Publication number
20100108379
Publication date
May 6, 2010
David Alston Edbury
E21 - EARTH DRILLING MINING
Information
Patent Application
MINES AND TUNNELS FOR USE IN TREATING SUBSURFACE HYDROCARBON CONTAI...
Publication number
20100071903
Publication date
Mar 25, 2010
Shell Oil Company
Robert George Prince-Wright
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
HYDROCARBON PRODUCTION FROM MINES AND TUNNELS USED IN TREATING SUBS...
Publication number
20100071904
Publication date
Mar 25, 2010
Shell Oil Company
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
HEATER CONNECTIONS IN MINES AND TUNNELS FOR USE IN TREATING SUBSURF...
Publication number
20090272536
Publication date
Nov 5, 2009
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
USING TUNNELS FOR TREATING SUBSURFACE HYDROCARBON CONTAINING FORMAT...
Publication number
20090272535
Publication date
Nov 5, 2009
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
HEATED FLUID FLOW IN MINES AND TUNNELS USED IN HEATING SUBSURFACE H...
Publication number
20090272533
Publication date
Nov 5, 2009
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
DUAL MOTOR SYSTEMS AND NON-ROTATING SENSORS FOR USE IN DEVELOPING W...
Publication number
20090272578
Publication date
Nov 5, 2009
Duncan Charles MacDonald
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
ELECTRICAL CURRENT FLOW BETWEEN TUNNELS FOR USE IN HEATING SUBSURFA...
Publication number
20090272526
Publication date
Nov 5, 2009
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
HYDROCARBON PRODUCTION FROM MINES AND TUNNELS USED IN TREATING SUBS...
Publication number
20090260824
Publication date
Oct 22, 2009
David Booth Burns
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
MINES AND TUNNELS FOR USE IN TREATING SUBSURFACE HYDROCARBON CONTAI...
Publication number
20090260823
Publication date
Oct 22, 2009
Robert George Prince-Wright
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
RANGING METHODS FOR DEVELOPING WELLBORES IN SUBSURFACE FORMATIONS
Publication number
20090194333
Publication date
Aug 6, 2009
Duncan MacDonald
E21 - EARTH DRILLING MINING
Information
Patent Application
WELLBORE MANUFACTURING PROCESSES FOR IN SITU HEAT TREATMENT PROCESSES
Publication number
20090090158
Publication date
Apr 9, 2009
Ian Alexander Davidson
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...