Patents by Inventor Frederick William Gray

Frederick William Gray 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).

  • Patent number: 4028263
    Abstract: A water soluble laundry detergent containing, an organic anionic detergent, nonionic detergent or mixture thereof, a builder salt, preferably including a silicate, a peroxymonosulfate bleaching agent, a bromide promoter for the bleaching agent and one or more of certain optical brighteners which are stable in the presence of the bleach and the promoter.The detergent composition has an excellent detersive action and is of improved bleaching efficiency compared to a non-promoted peroxymonosulfate-containing detergent. With proper selection of brightener acid or salt and judicious control of bromide and peroxymonosulfate contents in a detergent composition containing sufficient alkali to maintain a wash solution pH of at least 9, the ability of sodium bromide to promote removal of undesirable stains from a wash load of laundry is achieved with minimal adverse effect on the brightener and "colorfast" dyed fabrics are not discolored or bleached.
    Type: Grant
    Filed: August 24, 1973
    Date of Patent: June 7, 1977
    Assignee: Colgate-Palmolive Company
    Inventor: Frederick William Gray
  • Patent number: 4003700
    Abstract: In a process for removing stains from fabrics by washing in an aqueous medium containing a peroxygen compound and an acylamide activator, extremely small amounts of the activator, e.g., about 5 to 50 ppm., are effective if the medium contains about 100 to 300 ppm of trisodium nitrilotriacetate or ethylene diamine tetraacetic acid sodium salt and an amount of the peroxygen compound representing about 3 to 80 ppm of active oxygen and substantial excess of active oxygen over that stoichiometrically equivalent to the amount of activator.
    Type: Grant
    Filed: April 16, 1976
    Date of Patent: January 18, 1977
    Assignee: Colgate-Palmolive Company
    Inventors: Frederick William Gray, Jon C. Jervert
  • Patent number: 3956156
    Abstract: Use of sodium citrate in conjunction with peroxygen compounds and activators therefor.
    Type: Grant
    Filed: April 28, 1971
    Date of Patent: May 11, 1976
    Assignee: Colgate-Palmolive Company
    Inventors: Arthur Norman Osband, Frederick William Gray, Jon C. Jervert
  • Patent number: 3940341
    Abstract: Spray dried granular compositions containing sodium sulfite.
    Type: Grant
    Filed: March 22, 1973
    Date of Patent: February 24, 1976
    Assignee: Colgate-Palmolive Company
    Inventors: Frederick William Gray, Virgil John Richter, Andrew Henry Limekiller