Patents by Inventor Volker Port

Volker Port 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).

  • Process for making a persulfate-containing granulate for decolorizing or bleaching hair
    Patent number: 5674476
    Abstract: The method of making a granulate composition for decolorizing or bleaching hair consists of preparing a powdery mixture consisting of from 30 to 65% by weight of one or more inorganic persulfates, from 1 to 20% by weight of a binding agent selected from the group consisting of polyvinylpyrrolidone and polyethylene glycols having molecular weights of 200 to 10,000; of 15 to 45% by weight of at least one salt selected from the group consisting of alkali metal carbonates, alkaline earth metal carbonates, alkali metal hydrogen carbonates, alkali metal silicates and from 0.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: October 7, 1997
    Assignee: Wella Aktiengesellschaft
    Inventors: Thomas Clausen, Wolfgang R. Balzer, Volker Port, Jolanthe Kujawa