Patents by Inventor K. Karl Mueller

K. Karl Mueller 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 chemically imparting a durable, multiple-level, pile height to terry towelling, terry fabric and cut pile cotton fabric
    Patent number: 4215987
    Abstract: A durable, multiple-level, pile height is imparted to at least one surface of terry towelling, terry fabric or cut pile cotton fabric by treating the piles in predetermined areas of the surface with caustic paste and allowing the material to stand, with or without heating, so as to shrink and reduce the height of the caustic treated piles. The viscosity, the penetration period, and the manner of applying the paste are selected such that the ground layer of the material is substantially unaffected. The process is compatible with various dyeing techniques to obtain attractive color effects.
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: August 5, 1980
    Assignee: Cotton Incorporated
    Inventors: K. Karl Mueller, Christopher J. Lupton