Patents Represented by Attorney Kevin T. Mansfeild

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  • Cationic reactive dyes
    Patent number: 6949630
    Abstract: The cationic dyes of formula (1) specified in claim 1 are suitable especially for colouring keratin-containing fibres, more especially for colouring hair.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: September 27, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jean-Marie Adam, Jean-Pierre Bacher