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Christian Borchgrevink
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Langhus, NO
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Patents Grants
last 30 patents
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Patent Grant
Electrically operated valve actuator with electro-mechanical end st...
Patent number
9,482,359
Issue date
Nov 1, 2016
Vetco Gray Scandinavia AS
Christian Borchgrevink
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Subsea valve actuator having visual manual position indicator conne...
Patent number
9,103,459
Issue date
Aug 11, 2015
Vetco Gray Scandinavia AS
Christian Borchgrevink
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Sub sea hybrid valve actuator system and method
Patent number
8,596,608
Issue date
Dec 3, 2013
Veteo Gray Scandinavia AS
Tom Grimseth
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Gate valve actuator and method
Patent number
8,398,051
Issue date
Mar 19, 2013
Vetco Gray Scandinavia AS
Tom Grimseth
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method and an apparatus for cold start of a subsea production system
Patent number
8,327,942
Issue date
Dec 11, 2012
Vetco Gray Scandinavia AS
Tom Grimseth
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hybrid control system and method
Patent number
7,934,562
Issue date
May 3, 2011
Vetco Gray Scandinavia AS
Tom Grimseth
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
SEALS
Publication number
20130276894
Publication date
Oct 24, 2013
Vetco Gray Controls Limited
Christian Borchgrevink
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
ELECTRICALLY OPERATED VALVE ACTUATOR WITH ELECTRO-MECHANICAL END ST...
Publication number
20130056658
Publication date
Mar 7, 2013
Vetco Gray Scandinavia AS
Christian Borchgrevink
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SUBSEA VALVE ACTUATOR HAVING VISUAL MANUAL POSITION INDICATOR CONNE...
Publication number
20120234410
Publication date
Sep 20, 2012
Vecto Gray Scandinavia AS
Christian Borchgrevink
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
SUB SEA HYBRID VALVE ACTUATOR SYSTEM AND METHOD
Publication number
20110126912
Publication date
Jun 2, 2011
Vetcp Gray Scandinavia AS
Tom Grimseth
E21 - EARTH DRILLING MINING
Information
Patent Application
GATE VALVE ACTUATOR AND METHOD
Publication number
20110068287
Publication date
Mar 24, 2011
Vetco Gray Scandinavia AS
Tom Grimseth
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
METHOD AND AN APPARATUS FOR COLD START OF A SUBSEA PRODUCTION SYSTEM
Publication number
20100044053
Publication date
Feb 25, 2010
Vetco Gray Scandanavia AS
Tom Grimseth
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD AND APPARATUS FOR SUB SEA POWER GENERATION
Publication number
20090120103
Publication date
May 14, 2009
VetcoGray Scandinavia AS
Tom Grimseth
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Application
Hybrid Control System And Method
Publication number
20080257559
Publication date
Oct 23, 2008
VETCO GRAY SCANDINAVIA AS
Tom Grimseth
E21 - EARTH DRILLING MINING