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W. Andrew Liao
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Kingwood, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Methods and compositions for grouting heat exchange pipe
Patent number
6,502,636
Issue date
Jan 7, 2003
Halliburton Energy Services, Inc.
Jiten Chatterji
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Methods and compositions for grouting heat exchange pipe
Patent number
6,258,160
Issue date
Jul 10, 2001
Halliburton Energy Services, Inc.
Jiten Chatterji
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Composition and method for recovering lost circulation and sealing...
Patent number
6,105,674
Issue date
Aug 22, 2000
Dresser Industries, Inc.
W. Andrew Liao
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Clay-free biodegradable wellbore fluid and method for using same fluid
Patent number
5,955,401
Issue date
Sep 21, 1999
Baroid Technology, Inc.
W. Andrew Liao
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Well servicing fluid for trenchless directional drilling
Patent number
5,723,416
Issue date
Mar 3, 1998
W. Andrew Liao
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
Methods and compositions for grouting heat exchange pipe
Publication number
20020056404
Publication date
May 16, 2002
Jiten Chatterji
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES