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D.V. Satyanaryana Gupta
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Calgary, CA
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Patents Grants
last 30 patents
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Patent Grant
Surfactant based viscoelastic fluids
Patent number
7,638,468
Issue date
Dec 29, 2009
BJ Services Company
D. V. Satyanarayana Gupta
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method for fracturing subterranean formations
Patent number
6,875,728
Issue date
Apr 5, 2005
BJ Services Company Canada
D. V. Satyanarayana Gupta
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
Method for fracturing subterranean formations
Publication number
20030008781
Publication date
Jan 9, 2003
D.V. Satyanaryana Gupta
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...