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Huawen Li
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Delmont, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Conductive antireflective coatings and methods of producing same
Patent number
6,436,541
Issue date
Aug 20, 2002
PPG Industries Ohio, Inc.
John F. Sopko
G02 - OPTICS
Information
Patent Grant
Inkjet printing media containing substantially water-insoluble plas...
Patent number
6,265,049
Issue date
Jul 24, 2001
Hewlett-Packard Company
Robert G. Swisher
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Inkjet printing medium comprising multiple coatings
Patent number
6,183,844
Issue date
Feb 6, 2001
Hewlett-Packard Company
Huawen Li
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Water-soluble or water-dispersible addition copolymer
Patent number
5,998,534
Issue date
Dec 7, 1999
PPG Industries Ohio, Inc.
Robert H. Tang
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Inkjet printing media comprising the polymerization reaction produc...
Patent number
5,989,687
Issue date
Nov 23, 1999
PPG Industries Ohio, Inc.
Huawen Li
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Coating composition and articles prepared therewith
Patent number
5,744,243
Issue date
Apr 28, 1998
PPG Industries, Inc.
Huawen Li
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Coating composition, process for producing antireflective coatings,...
Patent number
5,580,819
Issue date
Dec 3, 1996
PPG Industries, Inc.
Huawen Li
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
Durable coating composition, process for producing durable, antiref...
Publication number
20010031811
Publication date
Oct 18, 2001
Huawen Li
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...