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Mark A. Spak
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Edison, NJ, US
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Patents Grants
last 30 patents
Information
Patent Grant
Photoresist composition for imaging thick films
Patent number
6,852,465
Issue date
Feb 8, 2005
Clariant International Ltd.
Ralph R. Dammel
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Lift-off process for patterning fine metal lines
Patent number
6,372,414
Issue date
Apr 16, 2002
Clariant Finance (BVI) Limited
Randy D. Redd
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Antireflective coating for photoresist compositions
Patent number
6,187,506
Issue date
Feb 13, 2001
Clariant Finance (BVI) Limited
Shuji Ding
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process for obtaining a lift-off imaging profile
Patent number
5,922,503
Issue date
Jul 13, 1999
Clariant Finance (BVI) Limited
Mark A. Spak
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image reversal negative working photoresist containing O-quinone di...
Patent number
5,399,456
Issue date
Mar 21, 1995
Hoechst Celanese Corporation
Mark A. Spak
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image reversal negative working O-naphthoquinone diazide and cross-...
Patent number
5,256,522
Issue date
Oct 26, 1993
Hoechst Celanese Corporation
Mark A. Spak
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image reversal negative working o-quinone diazide and cross-linking...
Patent number
5,217,840
Issue date
Jun 8, 1993
Hoechst Celanese Corporation
Mark A. Spak
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of producing an image reversal negative photoresist having a...
Patent number
5,019,488
Issue date
May 28, 1991
Hoechst Celanese Corporation
Donald C. Mammato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image reversal negative working O-quinone diazide and cross-linking...
Patent number
4,931,381
Issue date
Jun 5, 1990
Hoechst Celanese Corporation
Mark A. Spak
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image reversal negative working O-napthoquinone diazide and cross-l...
Patent number
4,929,536
Issue date
May 29, 1990
Hoechst Celanese Corporation
Mark A. Spak
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
High temperature post exposure baking treatment for positive photor...
Patent number
4,885,232
Issue date
Dec 5, 1989
Hoechst Celanese Corporation
Mark A. Spak
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Aqueous edge bead remover
Publication number
20050282093
Publication date
Dec 22, 2005
Ralph R. Dammel
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Photoresist composition for imaging thick films
Publication number
20040185368
Publication date
Sep 23, 2004
Ralph R. Dammel
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY