JoAnn McMahon

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Arnold, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
High molecular weight polyamine salts as clay stabilizing agents
- Patent number 7,838,468
- Issue date Nov 23, 2010
- Baker Hughes Incorporated
- David J. Poelker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyamine salts as clay stabilizing agents
- Patent number 7,601,675
- Issue date Oct 13, 2009
- Baker Hughes Incorporated
- David J. Poelker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
High molecular weight polyamine salts as clay stabilizing agents
- Patent number 7,328,745
- Issue date Feb 12, 2008
- Baker Hughes Incorporated
- David J. Poelker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process and composition for lower toxicity quaternary ammonium comp...
- Patent number 7,314,951
- Issue date Jan 1, 2008
- Baker Hughes Incorporated
- Gordon T. Rivers
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyamine salts as clay stabilizing agents
- Patent number 7,284,610
- Issue date Oct 23, 2007
- Baker Hughes Incorporated
- David J. Poelker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Copolymers useful for gelling acids
- Patent number 6,855,672
- Issue date Feb 15, 2005
- Baker Hughes Incorporated
- David J. Poelker
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
High Molecular Weight Polyamine Salts as Clay Stabilizing Agents
- Publication number 20080132711
- Publication date Jun 5, 2008
- BAKER HUGHES INCORPORATED
- David J. Poelker
- C07 - ORGANIC CHEMISTRY
Information Patent Application
POLYAMINE SALTS AS CLAY STABILIZING AGENTS
- Publication number 20080108523
- Publication date May 8, 2008
- BAKER HUGHES INCORPORATED
- David J. Poelker
- C07 - ORGANIC CHEMISTRY
Information Patent Application
High molecular weight polyamine salts as clay stabilizing agents
- Publication number 20060254772
- Publication date Nov 16, 2006
- Baker Hughes Incorporated (4 pp.)
- David J. Poelker
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Polyamine salts as clay stabilizing agents
- Publication number 20050126782
- Publication date Jun 16, 2005
- Baker Hughes Incorporated
- David J. Poelker
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process and composition for lower toxicity quaternary ammonium comp...
- Publication number 20050069515
- Publication date Mar 31, 2005
- Gordon T. Rivers
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Copolymers useful for gelling acids
- Publication number 20030104948
- Publication date Jun 5, 2003
- BAKER HUGHES INCORPORATED
- David J. Poelker
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...