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Kelvin T. Okamoto
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Arlington Heights, IL, US
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Patents Grants
last 30 patents
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Patent Grant
Container comprising biaxially oriented polystyrene composition and...
Patent number
5,733,618
Issue date
Mar 31, 1998
Packaging Corporation of America
Peter C. Kwong
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Biaxially oriented polystyrene film
Patent number
5,643,664
Issue date
Jul 1, 1997
Packaging Corporation of America
Peter C. Kwong
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
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Patent Application
Multi-layered environmentally friendly sheet material and products...
Publication number
20070218275
Publication date
Sep 20, 2007
James H. Parris
B32 - LAYERED PRODUCTS