Brian Walchuk

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Hockessin, DE, US

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Patents Grantslast 30 patents

Information Patent Grant
Anionic copolymers prepared in an inverse emulsion matrix
- Patent number 7,507,781
- Issue date Mar 24, 2009
- Hercules Incorporated
- Brian Walchuk
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cationic or amphoteric copolymers prepared in an inverse emulsion m...
- Patent number 7,396,874
- Issue date Jul 8, 2008
- Hercules Incorporated
- Martha Hollomon
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Anionic copolymers prepared in an inverse emulsion matrix and their...
- Patent number 7,250,448
- Issue date Jul 31, 2007
- Hercules Incorporated
- Brian Walchuk
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Anionic copolymers prepared in an inverse emulsion matrix and their...
- Publication number 20070265358
- Publication date Nov 15, 2007
- Brian Walchuk
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Cationic or amphoteric copolymers prepared in an inverse emulsion m...
- Publication number 20040143039
- Publication date Jul 22, 2004
- Martha Hollomon
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Anionic copolymers prepared in an inverse emulsion matrix and their...
- Publication number 20040102528
- Publication date May 27, 2004
- Brian Walchuk
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...