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Karl Gaa
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Burtenbach, DE
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last 30 patents
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Patent Grant
Storage-stable plastics additives
Patent number
6,491,853
Issue date
Dec 10, 2002
Clariant GmbH
Karl Gaa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Oligomeric stabilizer mixture
Patent number
6,225,385
Issue date
May 1, 2001
Clariant GmbH
Thomas Stährfeldt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Light stabilizers based on sterically hindered amines
Patent number
5,919,933
Issue date
Jul 6, 1999
Clariant GmbH
Karl Gaa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Plastic with reduced sulfur uptake rate
Patent number
5,852,159
Issue date
Dec 22, 1998
Hoechst Aktiengesellschaft
Matthias Zah
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyalkylpiperidine compounds
Patent number
5,633,378
Issue date
May 27, 1997
Hoechst Aktiengesellschaft
Karl Gaa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of polyalkyl-1-oxa-diazaspirodecane com...
Patent number
5,594,142
Issue date
Jan 14, 1997
Hoechst Aktiengesellschaft
Karl Gaa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of polyalkyl-1-oxa-diazaspirodecane com...
Patent number
5,550,242
Issue date
Aug 27, 1996
Hoechst Aktiengesellschaft
Karl Gaa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polyalkylpiperidine compounds
Patent number
5,550,234
Issue date
Aug 27, 1996
Hoechst Aktiengesellschaft
Karl Gaa
C07 - ORGANIC CHEMISTRY