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William C. Richardson
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Bellaire, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Tracers for heavy oil
Patent number
6,331,436
Issue date
Dec 18, 2001
Texaco, Inc.
William C. Richardson
G01 - MEASURING TESTING
Information
Patent Grant
Chemically assisted thermal flood process
Patent number
6,305,472
Issue date
Oct 23, 2001
Texaco Inc.
William C. Richardson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydrocarbon-assisted thermal recovery method
Patent number
5,685,371
Issue date
Nov 11, 1997
Texaco Inc.
William Charles Richardson
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method for decreasing permeability around a wellbore
Patent number
4,721,161
Issue date
Jan 26, 1988
Texaco Inc.
William C. Richardson
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Oxidized alkali lignins and their use in enhanced oil recovery
Patent number
4,611,659
Issue date
Sep 16, 1986
Getty Oil Company
Francis E. DeBons
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
CHEMICALLY ASSISTED THERMAL FLOOD PROCESS
Publication number
20010018975
Publication date
Sep 6, 2001
WILLIAM C RICHARDSON
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...