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Rolf Schwarzenbach
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Winterthur, CH
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last 30 patents
Information
Patent Grant
Cosmetic light screening composition
Patent number
6,165,451
Issue date
Dec 26, 2000
Roche Vitamins Inc.
Alain Bringhen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Light screening composition containing a polysiloxane-type UV-B scr...
Patent number
6,123,929
Issue date
Sep 26, 2000
Roche Vitamins Inc
Hans Ulrich Gonzenbach
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Organosilicon compounds
Patent number
5,495,039
Issue date
Feb 27, 1996
Givaudan-Roure Corporation
Georg Frater
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Organosilicon compounds
Patent number
5,403,944
Issue date
Apr 4, 1995
Givaudan-Roure Corporation
Georg Frater
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for treating 2-ethylhexyl p-methoxycinnamate in the presenc...
Patent number
4,713,473
Issue date
Dec 15, 1987
Givaudan Corporation
Peter Schudel
C07 - ORGANIC CHEMISTRY