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Hansjoerg Vollmann
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Bad Soden, DE
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last 30 patents
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Patent Grant
Photopolymerizable composition and photopolymerizable recording mat...
Patent number
5,057,398
Issue date
Oct 15, 1991
Hoechst Aktiengesellschaft
Hans-Dieter Frommeld
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Color filter array for liquid crystal display device
Patent number
4,877,697
Issue date
Oct 31, 1989
Hoechst Aktiengesellschaft
Hansjoerg W. Vollmann
G02 - OPTICS
Information
Patent Grant
Liquid developer and charge control substance suitable therefor
Patent number
4,594,305
Issue date
Jun 10, 1986
Hoechst Aktiengesellschaft
Hansjoerg Vollmann
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY