Patents by Inventor John H. Barrett, Jr.

John H. Barrett, 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).

  • Peroxygen bleaching and laundering compositions
    Patent number: 4215990
    Abstract: Granular peroxygen bleaching and laundering compositions containing a percarbonate as a source of available oxygen are stabilized by the addition of from 0.1 to 2.0 percent of a particulate siliceous matter such as amorphous silica. To prevent caking and promote flowability of the compositions, from 0.05 to 1.0 percent corn starch, diethyl phthalate or mixtures thereof is included.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: August 5, 1980
    Assignee: Purex Corporation
    Inventors: John H. Barrett, Jr., Elizabeth F. Formeloza
  • Liquid peroxygen bleach
    Patent number: 3970575
    Abstract: Composition for a clear blue colored, stabilized liquid peroxygen bleach, suitable for household laundry use on all fabrics, whose coloring dye is rendered non-substantive to natural or synthetic fibers by the inclusion of a non-ionic surfactant as an anti-dyeing agent having an HLB value within a predetermined range.
    Type: Grant
    Filed: February 21, 1974
    Date of Patent: July 20, 1976
    Assignee: Purex Corporation
    Inventor: John H. Barrett, Jr.
  • Laundering pre-spotter and method of production
    Patent number: 3953353
    Abstract: A solid product for rub-on application to stains and soil deposits on fabric preparatory to laundering, comprising blended water soluble non-ionic detergent and stable laundry enzyme uniformly dispersed therein, and the method of manufacturing the product.
    Type: Grant
    Filed: November 8, 1974
    Date of Patent: April 27, 1976
    Assignee: Purex Corporation
    Inventors: John H. Barrett, Jr., Brian P. Flynn