Patents by Inventor Robert L. Klein, Jr.

Robert L. Klein, Jr. 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).

  • Continuous bleaching of alkylpolyglycosides
    Patent number: 5554740
    Abstract: A continuous method of bleaching an alkylpolyglycoside, substantially free of alcohol, with peroxy compounds, preferably hydrogen peroxide, which is highly efficient to provide an unexpected high degree of color reduction from a dark brown to a light, white product, from an extinction coefficient color respectively of about 10 to about 15 to about 0.025 to about 0.15. The bleaching is carried out at controlled pH and temperature, under pressure preferably in the presence of Mg or MgO.
    Type: Grant
    Filed: August 23, 1994
    Date of Patent: September 10, 1996
    Assignee: Henkel Corporation
    Inventors: Patrick M. McCurry, Jr., Robert L. Klein, Jr., Michael W. Gibson, James D. Beaulieu, Janet R. Varvil
  • Continuous bleaching of alkylpolyglycosides
    Patent number: 5362861
    Abstract: A continuous method of bleaching an alkylpolyglycoside, substantially free of alcohol, with peroxy compounds, preferably hydrogen peroxide, which is highly efficient to provide an unexpected high degree of color reduction from a dark brown to a light, white product, from an extinction coefficient color respectively of about 10 to about 15 to about 0.025 to about 0.15. The bleaching is carried out at controlled pH and temperature, under pressure preferably in the presence of Mg or MgO.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: November 8, 1994
    Assignee: Henkel Corporation
    Inventors: Patrick M. McCurry, Jr., Robert L. Klein, Jr., Michael W. Gibson, James D. Beaulieu, Janet R. Varvil