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Hans-Dieter Frommeld
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Wiesbaden, DE
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last 30 patents
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Patent Grant
Photopolymerizable composition and photopolymerizable recording mat...
Patent number
6,127,091
Issue date
Oct 3, 2000
Morton International, Inc.
Ulrich Geissler
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photopolymerizable composition containing an N-heterocyclic photoin...
Patent number
6,114,091
Issue date
Sep 5, 2000
Morton International, Inc.
Ulrich Geissler
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photopolymerizable mixture and recording material prepared therefrom
Patent number
5,221,595
Issue date
Jun 22, 1993
Hoechst Aktiengesellschaft
Juergen Lingnau
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Photopolymerizable mixture and photopolymerizable copying material...
Patent number
5,217,845
Issue date
Jun 8, 1993
Hoechst Aktiengesellschaft
Hartmut Steppan
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Quinoline and acridine compounds effective as photoinitiators and c...
Patent number
5,200,299
Issue date
Apr 6, 1993
Hoechst Aktiengesellschaft
Hartmut Steppan
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for stabilizing a leuco-dye solution by means of a piperidi...
Patent number
5,085,669
Issue date
Feb 4, 1992
Hoechst Aktiengesellschaft
Hans-Dieter Frommeld
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
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
Photopolymerizable compositions a leuco dye and a leuco dye stabilizer
Patent number
4,940,647
Issue date
Jul 10, 1990
Hoechst Aktiengesellschaft
Hans-Dieter Frommeld
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photopolymerizable composition and photopolymerizable recording mat...
Patent number
4,780,393
Issue date
Oct 25, 1988
Hoechst Aktiengesellschaft
Hans-Dieter Frommeld
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photosensitive composition and recording material with photosensiti...
Patent number
4,749,639
Issue date
Jun 7, 1988
Hoechst Aktiengesellschaft
Hans-Dieter Frommeld
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photopolymerizable composition and photopolymerizable recording mat...
Patent number
4,737,445
Issue date
Apr 12, 1988
Hoechst Aktiengesellschaft
Hans-Dieter Frommeld
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Photosensitive mixture and photosensitive recording material with d...
Patent number
4,659,645
Issue date
Apr 21, 1987
Hoechst Aktiengesellschaft
Hans-Dieter Frommeld
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Two-component diazotype material
Patent number
4,457,997
Issue date
Jul 3, 1984
Hoechst Aktiengesellschaft
Klaus Thoese
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Two-component diazotype material
Patent number
4,273,850
Issue date
Jun 16, 1981
Hoechst Aktiengesellschaft
Hans-Dieter Frommeld
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Two-component diazotype material
Patent number
4,171,222
Issue date
Oct 16, 1979
Hoechst Aktiengesellschaft
Hans-Dieter Frommeld
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY