Patents by Inventor Robert Steltenkamp

Robert Steltenkamp 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).

  • Peroxygen bleach composition
    Patent number: 5785887
    Abstract: A peroxygen bleaching composition which comprises approximately by weight a mixture of about 1 to about 75% of an inorganic peroxygen bleaching compound; and about 1 to about 75% peroxygen ketalcycloalkanedione bleachant activator.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: July 28, 1998
    Assignee: Colgate-Palmolive Company
    Inventors: Robert Steltenkamp, Robert Heffner
  • Peroxygen bleach composition
    Patent number: 5512206
    Abstract: A peroxygen bleaching composition which comprises approximately by weight a mixture of about 1 to about 75% of an inorganic peroxygen bleaching compound; and about 1 to about 75% peroxygen ketalcycloalkanedione bleachant activator.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: April 30, 1996
    Assignee: Colgate-Palmolive Co.
    Inventors: Robert Steltenkamp, Robert Heffner