Michel Levesque

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Beauharnois, CA

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Patents Grantslast 30 patents

Information Patent Grant
Use of calcium carbonate in rigid poly(vinyl chloride) compositions
- Patent number 7,238,739
- Issue date Jul 3, 2007
- PolyOne Corporation
- Roman B. Hawrylko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Use of calcium carbonate in rigid poly(vinyl chloride) compositions
- Publication number 20050131123
- Publication date Jun 16, 2005
- Roman B Hawrylko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Rigid PVC compounding compositions exhibiting weather resistance an...
- Publication number 20030176544
- Publication date Sep 18, 2003
- PolyOne Corporation
- Roman Bohdan Hawrylko
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...