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Alex Peterson Jr.
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Pittsburgh, PA, US
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last 30 patents
Information
Patent Grant
Resorcinolic derivative for rubber compounds
Patent number
6,541,551
Issue date
Apr 1, 2003
INDSPEC Chemical Corporation
Raj B. Durairaj
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Nonformaldehyde, nonfuming resorcinolic resins and methods of makin...
Patent number
6,472,457
Issue date
Oct 29, 2002
INDSPEC Chemical Corporation
Raj B. Durairaj
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Non-volatile resorcinolic resins and methods of making and using th...
Patent number
5,945,500
Issue date
Aug 31, 1999
Indspec Chemical Corp.
Raj B. Durairaj
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Non-volatile resorcinolic resins and methods of making and using th...
Patent number
5,936,056
Issue date
Aug 10, 1999
INDSPEC Chemical Corporation
Raj B. Durairaj
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Hydroxyalkyl aryl ethers of di- and polyhydric phenols
Patent number
5,244,725
Issue date
Sep 14, 1993
INDSPEC Chemical Corporation
Hans Dressler
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Rubber compounding resin
Patent number
5,021,522
Issue date
Jun 4, 1991
INDSPEC Chemical Corporation
Bojayan Durairaj
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Rubber composition and method for making the same
Patent number
4,892,908
Issue date
Jan 9, 1990
INDSPEC Chemical Corporation
Bojayan Durairaj
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Novel rubber compounding resorcinolic resins
Patent number
4,889,891
Issue date
Dec 26, 1989
INDSPEC Chemical Corporation
Bojayan Durairaj
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method of preparing coals for coking
Patent number
4,225,391
Issue date
Sep 30, 1980
Koppers Company, Inc.
Michael Perch
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...