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Donald R. Ulrich
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Alexandria, VA, US
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last 30 patents
Information
Patent Grant
Process for producing liquid crystalline composites
Patent number
4,944,895
Issue date
Jul 31, 1990
Hoechst Celanese Corp.
Alan Buckley
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for preparing liquid crystalline polymer composites
Patent number
4,937,013
Issue date
Jun 26, 1990
Hoechst Celanese Corp.
Alan Buckley
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Electrooptic device having a liquid crystalline polymer composite o...
Patent number
4,933,111
Issue date
Jun 12, 1990
Hoechst Celanese Corp.
Alan Buckley
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Optical light switch or modulator device with a liquid crystalline...
Patent number
4,898,454
Issue date
Feb 6, 1990
Hoechst Celanese Corporation
Alan Buckley
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Inorganic-organic composite compositions exhibiting nonlinear optic...
Patent number
4,898,755
Issue date
Feb 6, 1990
Hoechst Celanese Corporation
Tessie M. Che
G02 - OPTICS
Information
Patent Grant
Inorganic-organic composite compositions exhibiting nonlinear optic...
Patent number
4,861,129
Issue date
Aug 29, 1989
Hoechst Celanese Corp.
Tessie M. Che
G02 - OPTICS
Information
Patent Grant
Inorganic-organic composite compositons exhibiting nonlinear optica...
Patent number
4,851,270
Issue date
Jul 25, 1989
Hoechst Celanese Corporation
Tessie M. Che
G02 - OPTICS
Information
Patent Grant
Liquid crystalline composites
Patent number
4,814,211
Issue date
Mar 21, 1989
Hoechst Celanese Corporation
Alan Buckley
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...