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Revathi Iyengar
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Courtland Manor, NY, US
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Patents Grants
last 30 patents
Information
Patent Grant
Benzotriazole UV absorbers having enhanced durability
Patent number
6,515,051
Issue date
Feb 4, 2003
Ciba Specialty Chemicals Corporation
Ramanathan Ravichandran
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Benzotriazole UV absorbers having enhanced durability
Patent number
6,458,872
Issue date
Oct 1, 2002
Ciba Specialty Chemicals Corporation
Ramanathan Ravichandran
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Stabilized adhesive compositions containing highly soluble, photost...
Patent number
6,268,415
Issue date
Jul 31, 2001
Ciba Specialty Chemicals Corporation
Walter Renz
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Benzotriazole UV absorbers having enhanced durability
Patent number
6,262,151
Issue date
Jul 17, 2001
Ciba Specialty Chemicals Corporation
Ramanathan Ravichandran
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Stabilized adhesive compositions containing highly soluble, high ex...
Patent number
6,225,384
Issue date
May 1, 2001
Ciba Specialty Chemicals Corporation
Walter Renz
B32 - LAYERED PRODUCTS
Information
Patent Grant
Stabilized adhesive compositions containing highly soluble, high ex...
Patent number
6,191,199
Issue date
Feb 20, 2001
Ciba Speciatly Chemicals Corporation
Walter Renz
B32 - LAYERED PRODUCTS
Information
Patent Grant
Stabilized adhesive compositions containing highly soluble, red-shi...
Patent number
6,187,845
Issue date
Feb 13, 2001
Ciba Specialty Chemicals Corporation
Walter Renz
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Benzotriazole UV absorbers having enhanced durability
Patent number
6,166,218
Issue date
Dec 26, 2000
Ciba Specialty Chemicals Corporation
Ramanathan Ravichandran
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Benzotriazole UV absorbers having enhanced durability
Patent number
5,977,219
Issue date
Nov 2, 1999
Ciba Specialty Chemicals Corporation
Ramanathan Ravichandran
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Tris-aryl-s-triazines substituted with biphenylyl groups
Patent number
5,849,821
Issue date
Dec 15, 1998
Ciba Specialty Chemicals Corporation
Tyler A. Stevenson
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Tris-aryls-triazines substituted with biphenylyl groups
Patent number
5,726,309
Issue date
Mar 10, 1998
Ciba Specialty Chemicals Corporation
Tyler A. Stevenson
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Benzotriazole UV absorbers having enhanced durability
Publication number
20020065341
Publication date
May 30, 2002
Ramanathan Ravichandran
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Benzotriazole UV absorbers having enhanced durability
Publication number
20010007886
Publication date
Jul 12, 2001
Ramanathan Ravichandran
C07 - ORGANIC CHEMISTRY