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Guiseppe Prota
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Naples, IT
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last 30 patents
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Patent Grant
Oxidative hair dyeing process with dihydroxybenzenes and aminoethan...
Patent number
5,980,586
Issue date
Nov 9, 1999
Bristol-Myers Squibb Company
Gottfried Wenke
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Hair dyeing with persulfate oxidants and catechols
Patent number
5,603,734
Issue date
Feb 18, 1997
Clairol Incorporated
Guiseppe Prota
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Oxidative hair dyeing process with dihydroxybenzenes and aminoethan...
Patent number
5,584,889
Issue date
Dec 17, 1996
Clairol Incorporated
Gottfried Wenke
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Hair dyeing process with aminoalkylthio substituted dihydroxybenzen...
Patent number
5,435,810
Issue date
Jul 25, 1995
Clairol Incorporated
Guiseppe Prota
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Oxidative hair dyeing method, composition, and kit utilizing hydrox...
Patent number
5,374,288
Issue date
Dec 20, 1994
Clairol Incorporated
Guiseppe Prota
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE