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Patents Grants
last 30 patents
Information
Patent Grant
Downhole fast-acting shut-in valve system
Patent number
10,066,460
Issue date
Sep 4, 2018
Dag Pedersen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Bridge plug tool
Patent number
9,650,861
Issue date
May 16, 2017
Qinterra Technologies
Dag Pedersen
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
DOWNHOLE FAST-ACTING SHUT-IN VALVE SYSTEM
Publication number
20150096742
Publication date
Apr 9, 2015
Robin Lovslett
E21 - EARTH DRILLING MINING
Information
Patent Application
EXPANDABLE PACKER
Publication number
20140284047
Publication date
Sep 25, 2014
Robin Lovslett
E21 - EARTH DRILLING MINING
Information
Patent Application
BRIDGE PLUG TOOL
Publication number
20140196913
Publication date
Jul 17, 2014
EXTREME INVENT AS
Dag Pedersen
E21 - EARTH DRILLING MINING