Patents by Inventor Patrick Runser

Patrick Runser has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5356445
    Abstract: The invention relates to a process for dyeing natural or synthetic polyamide fiber material from an aqueous liquor, in the presence of a levelling assistant and in the presence or absence of an alkali metal fluorosilicate or ammonium fluorosilicate, which process comprises the use of a mixture of the dyes of formulae (1), (2) and (3) or a mixture of the dyes of formulae (4) and (5), or a mixture which contains the dye of formula (6) together with at least one dye of formulae (7), (8) and (9), which dyes of fomaulae (1) to (9) are as defined in claim 1.The inventive process is suitable for dyeing natural or synthetic polyamide fiber material to give dyeings of fiber and surface levelness having good fastness properties.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: October 18, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Christian De Meulemeester, Patrick Runser