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Bernd Dewald
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Idstein, DE
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last 30 patents
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Patent Grant
Polymer laminates having increased hiding power
Patent number
6,143,379
Issue date
Nov 7, 2000
Clariant GmbH
Axel Schoenfeld
B32 - LAYERED PRODUCTS
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Patent Grant
Colored cholesteric liquid-crystal polymers having optically variab...
Patent number
6,017,984
Issue date
Jan 25, 2000
Clariant GmbH
Axel Schonfeld
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Colorant formulation
Patent number
4,782,111
Issue date
Nov 1, 1988
Hoechst Aktiengesellschaft
Peter Klein
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Dyeing agent compositions based on polypropylene wax
Patent number
4,235,641
Issue date
Nov 25, 1980
Hoechst Aktiengesellschaft
Manfred Engelmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...