Patents by Inventor Karin U. Schallreuter

Karin U. Schallreuter 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).

  • Peptide and its use in the treatment of hyperpigmentation conditions
    Publication number: 20030166570
    Abstract: A peptide having the formula:
    Type: Application
    Filed: February 7, 2001
    Publication date: September 4, 2003
    Inventors: Anthony J. Thody, John M. Wood, Karin U. Schallreuter
  • Composition and method of enhancing sun tanning
    Patent number: 5443819
    Abstract: The present invention relates to the enhancement of suntanning following exposure to sunlight or other source of UV light by topically applying pseudocatalase compounds.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: August 22, 1995
    Assignee: Stiefel Laboratories, Inc.
    Inventors: John M. Wood, Karin U. Schallreuter
  • Composition and method of treating depigmentation disorders
    Patent number: 5433942
    Abstract: Vitiligo and other tyrosinase-positive depigmentation disorders are treated by topical application of a pseudocatalase and subsequent exposure to a sub-minimal erythema dose of UVB light. After a course of treatment, pigmentation of the affected areas can be maintained by treatment with the pseudocatalases without UVB light treatment. The preferred pseudocatalases are transition metal co-ordination complexes, especially manganese (II) bicarbonate.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: July 18, 1995
    Assignee: Stiefel Laboratories, Inc.
    Inventors: John M. Wood, Karin U. Schallreuter
  • Method for determining thioredoxin reductase activity
    Patent number: 4849346
    Abstract: The present invention provides a method for measuring the activity of thioredoxin reductase in mammalian cells by contacting the cells in vivo or in vitro with a quaternary ammonium salt spin-labelled with a stable nitroxide free radical, and measuring the rate of reduction of the uncomplexed nitroxide free radical at the cell surface by electron spin resonance. This rate of reduction provides a measure of thioredoxin reductase activity at the surface of the cells.
    Type: Grant
    Filed: February 12, 1987
    Date of Patent: July 18, 1989
    Assignee: Regents of the University of Minnesota
    Inventors: John M. Wood, Karin U. Schallreuter