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David Stewart Christie
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Scotland, GB
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Patents Grants
last 30 patents
Information
Patent Grant
Vertical subsea tree annulus and controls access
Patent number
9,523,259
Issue date
Dec 20, 2016
GE Oil & Gas UK Limited
David Stewart Christie
E21 - EARTH DRILLING MINING
Information
Patent Grant
Light well intervention umbilical and flying lead management system...
Patent number
9,038,726
Issue date
May 26, 2015
Vetco Gray U.K., Limited
David Stewart Christie
E21 - EARTH DRILLING MINING
Information
Patent Grant
Combined tree stab and control interface
Patent number
8,240,389
Issue date
Aug 14, 2012
Vetco Gray Inc.
David S. Christie
E21 - EARTH DRILLING MINING
Information
Patent Grant
Large bore vertical tree
Patent number
8,157,015
Issue date
Apr 17, 2012
Vetco Gray Inc.
Robert K. Voss
E21 - EARTH DRILLING MINING
Information
Patent Grant
Through riser installation of tree block
Patent number
8,011,436
Issue date
Sep 6, 2011
Vetco Gray Inc.
David S. Christie
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tubing running equipment for offshore rig with surface blowout prev...
Patent number
7,513,308
Issue date
Apr 7, 2009
Vetco Gray Inc.
Stanley Hosie
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tubing running equipment for offshore rig with surface blowout prev...
Patent number
7,318,480
Issue date
Jan 15, 2008
Vetco Gray Inc.
Stanley Hosie
E21 - EARTH DRILLING MINING
Information
Patent Grant
Riser dog screw with fail safe mechanism
Patent number
6,328,343
Issue date
Dec 11, 2001
ABB Vetco Gray, Inc.
Stanley Hosie
E21 - EARTH DRILLING MINING
Information
Patent Grant
Horizontal tree block for subsea wellhead and completion method
Patent number
6,076,605
Issue date
Jun 20, 2000
ABB Vetco Gray Inc.
Robert O. Lilley
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tubular threaded connector joint with separate interfering locking...
Patent number
5,044,676
Issue date
Sep 3, 1991
Abbvetco Gray Inc.
Kevin Burton
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Vertical Subsea Tree Annulus and Controls Access
Publication number
20160258247
Publication date
Sep 8, 2016
GE Oil & Gas UK Limited
David Stewart Christie
E21 - EARTH DRILLING MINING
Information
Patent Application
Light Well Intervention Umbilical and Flying Lead Management System...
Publication number
20130327534
Publication date
Dec 12, 2013
VETCO GRAY U.K. LIMITED
David Stewart Christie
E21 - EARTH DRILLING MINING
Information
Patent Application
Combined Tree Stab and Control Interface
Publication number
20100078176
Publication date
Apr 1, 2010
Vetco Gray Inc.
David S. Christie
E21 - EARTH DRILLING MINING
Information
Patent Application
Large Bore Vertical Tree
Publication number
20090255682
Publication date
Oct 15, 2009
Vetco Gray Inc.
Robert K. Voss
E21 - EARTH DRILLING MINING
Information
Patent Application
Integrated Electrical Connector For Use In A Wellhead Tree
Publication number
20090223674
Publication date
Sep 10, 2009
Vetco Gray Inc.
David S. Christie
E21 - EARTH DRILLING MINING
Information
Patent Application
Through-Riser Installation of Tree Block
Publication number
20080245529
Publication date
Oct 9, 2008
Vetco Gray Inc.
David S. Christie
E21 - EARTH DRILLING MINING
Information
Patent Application
Tubing running equipment for offshore rig with surface blowout prev...
Publication number
20060042791
Publication date
Mar 2, 2006
Stanley Hosie
E21 - EARTH DRILLING MINING
Information
Patent Application
Tubing running equipment for offshore rig with surface blowout prev...
Publication number
20060042799
Publication date
Mar 2, 2006
Veto Gray Inc.
Stanley Hosie
E21 - EARTH DRILLING MINING