John Cochrane LEITCH

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Magnolia, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Annulus installed 6 zone control manifold
- Patent number 10,145,208
- Issue date Dec 4, 2018
- ConocoPhillips Company
- John Cochrane Leitch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole zone flow control system
- Patent number 9,695,679
- Issue date Jul 4, 2017
- ConocoPhillips Company
- John Cochrane Leitch
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ANNULUS INSTALLED 6 ZONE CONTROL MANIFOLD
- Publication number 20170022790
- Publication date Jan 26, 2017
- ConocoPhillips Company
- John Cochrane LEITCH
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWNHOLE ZONE FLOW CONTROL SYSTEM
- Publication number 20150107848
- Publication date Apr 23, 2015
- ConocoPhillips Company
- John Cochrane LEITCH
- E21 - EARTH DRILLING MINING