William A. Wortman

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Harwinton, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
β-crystalline polypropylenes
- Patent number 7,585,909
- Issue date Sep 8, 2009
- Chemtura Corporation
- Qinggao Ma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Urea phenyl derivatives and their use as polypropylene nucleating a...
- Patent number 7,572,849
- Issue date Aug 11, 2009
- Chemtura Corporation
- Qinggao Ma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
β-Crystalline polypropylenes
- Patent number 7,569,630
- Issue date Aug 4, 2009
- Chemtura Corporation
- Qinggao Ma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ortho-nitrosophenols as polymerization inhibitors
- Patent number 7,553,896
- Issue date Jun 30, 2009
- Chemtura Corporation
- Qinggao Ma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
ORTHO-NITROSOPHENOLS AS POLYMERIZATION INHIBITORS
- Publication number 20090240092
- Publication date Sep 24, 2009
- Qinggao MA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Beta-crystalline polypropylenes
- Publication number 20070293609
- Publication date Dec 20, 2007
- Qinggao Ma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Beta-crystalline polypropylenes
- Publication number 20070117891
- Publication date May 24, 2007
- Qinggao Ma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Urea phenyl derivatives and their use as polypropylene nucleating a...
- Publication number 20070117890
- Publication date May 24, 2007
- Qinggao Ma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Ortho-nitrosophenols as polymerization inhibitors
- Publication number 20060283699
- Publication date Dec 21, 2006
- Qinggao Ma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...