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Sobhy Tadros
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Seekonk, MA, US
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last 30 patents
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Patent Grant
Selected O-quinonediazide sulfonic acid esters of phenolic compound...
Patent number
5,602,260
Issue date
Feb 11, 1997
OCG Microelectronic Materials, Inc.
Andrew J. Blakeney
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
O-quinonediazide sulfonic acid esters of phenolic compounds and the...
Patent number
5,547,814
Issue date
Aug 20, 1996
OCG Microelectronic Materials, Inc.
Andrew J. Blakeney
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Selected o-quinonediazide sulfonic acid esters of phenolic compound...
Patent number
5,541,033
Issue date
Jul 30, 1996
OCG Microelectronic Materials, Inc.
Andrew J. Blakeney
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Selected block phenolic oligomers and their use in phenolic resin c...
Patent number
5,302,688
Issue date
Apr 12, 1994
OCG Microelectronic Materials, Inc.
Alfred T. Jeffries
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process of developing an image-wise exposed resist-coated substrate
Patent number
5,234,795
Issue date
Aug 10, 1993
OCG Microelectronic Materials, Inc.
Alfred T. Jeffries
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Selected block copolymer novolak binder resins
Patent number
5,235,022
Issue date
Aug 10, 1993
OCG Microelectronic Materials, Inc.
Alfred T. Jeffries
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Selected block phenolic oligomers and their use in phenolic resin c...
Patent number
5,232,819
Issue date
Aug 3, 1993
OCG Microelectronic Materials, Inc.
Alfred T. Jeffries
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Selected photoactive methylolated cyclohexanol compounds and their...
Patent number
5,225,318
Issue date
Jul 6, 1993
OCG Microelectronic Materials, Inc.
Sobhy Tadros
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Selected block phenolic oligomers and their use in radiation-sensit...
Patent number
5,196,289
Issue date
Mar 23, 1993
OCG Microelectronic Materials, Inc.
Alfred T. Jeffries
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Selected block copolymer novolak binder resins in radiation-sensiti...
Patent number
5,188,921
Issue date
Feb 23, 1993
OCG Microelectronic Materials, Inc.
Alfred T. Jeffries
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Selected photoactive methylolated cyclohexanol compounds and their...
Patent number
5,151,340
Issue date
Sep 29, 1992
OCG Microelectronic Materials, Inc.
Sobhy Tadros
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY