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Alan T. Hemphill
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Sugar Land, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method for determining sweep efficiency for removing cuttings from...
Patent number
6,986,396
Issue date
Jan 17, 2006
Halliburton Energy Services, Inc.
Alan Terry Hemphill
E21 - EARTH DRILLING MINING
Information
Patent Grant
Acoustic doppler downhole fluid flow measurement
Patent number
6,938,458
Issue date
Sep 6, 2005
Halliburton Energy Services, Inc.
Wei Han
G01 - MEASURING TESTING
Information
Patent Grant
Acoustic Doppler downhole fluid flow measurement
Patent number
6,829,947
Issue date
Dec 14, 2004
Halliburton Energy Services, Inc.
Wei Han
G01 - MEASURING TESTING
Information
Patent Grant
Method for determining sweep efficiency for removing cuttings from...
Patent number
6,662,884
Issue date
Dec 16, 2003
Halliburton Energy Services, Inc.
Alan Terry Hemphill
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Acoustic doppler downhole fluid flow measurement
Publication number
20050034530
Publication date
Feb 17, 2005
Halliburton Energy Services, Inc.
Wei Han
E21 - EARTH DRILLING MINING
Information
Patent Application
Method for determining sweep efficiency for removing cuttings from...
Publication number
20040060738
Publication date
Apr 1, 2004
Alan Terry Hemphill
E21 - EARTH DRILLING MINING
Information
Patent Application
Acoustic doppler downhole fluid flow measurement
Publication number
20040003658
Publication date
Jan 8, 2004
Halliburton Energy Services, Inc.
Wei Han
E21 - EARTH DRILLING MINING
Information
Patent Application
Method for determining sweep efficiency for removing cuttings from...
Publication number
20030102163
Publication date
Jun 5, 2003
Alan Terry Hemphill
E21 - EARTH DRILLING MINING