Guohua Cao

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Missouri City, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Polyalkylated arylalkyl sulfonic acids and their salts
- Patent number 7,678,937
- Issue date Mar 16, 2010
- Paul Daniel Berger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for recovering residual oil employing alcohol ether sulfonates
- Patent number 7,629,299
- Issue date Dec 8, 2009
- Oil chem Technologies
- Paul Daniel Berger
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polyalkylated arylalkyl sulfonic acids and their salts
- Patent number 7,605,287
- Issue date Oct 20, 2009
- Oil chem Technologies
- Paul Daniel Berger
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Polyalkylated arylalkyl sulfonic acids and their salts
- Publication number 20090023950
- Publication date Jan 22, 2009
- Oil Chem Technologies, Inc.
- Paul D. Berger
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Polyalkylated Arylalkyl Sulfonic acids and their salts
- Publication number 20090023951
- Publication date Jan 22, 2009
- Paul Daniel Berger
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Surfactant based compositions and process for heavy oil recovery
- Publication number 20080261835
- Publication date Oct 23, 2008
- Paul Daniel Berger
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Process for recovering residual oil employing alcohol ether sulfonates
- Publication number 20080176772
- Publication date Jul 24, 2008
- Paul Daniel Berger
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...