Patents by Inventor Jack M. Knox

Jack M. Knox 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).

  • Triphenylmethane dyestuff
    Patent number: 4595536
    Abstract: A method for sanitizing flush toilets wherein a sanitizing agent and a triphenylmethane dyestuff are dispensed into the toilet flush water. The dyestuff is resistant to attack by the sanitizing and therefore provides an aesthetically pleasing color to the water remaining in the bowl during the time period between flushes.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: June 17, 1986
    Assignee: The Hilton-Davis Chemical Co.
    Inventors: William M. Hung, Jack M. Knox
  • Method for sanitizing toilets
    Patent number: 4536368
    Abstract: A method for sanitizing flush toilets wherein a sanitizing agent and a triphenylmethane dyestuff are dispensed into the toilet flush water. The dyestuff is resistant to attack by the sanitizing and therefore provides an aesthetically pleasing color to the water remaining in the bowl during the time period between flushes.
    Type: Grant
    Filed: December 9, 1983
    Date of Patent: August 20, 1985
    Assignee: The Hilton-Davis Chemical Co.
    Inventors: William M. Hung, Jack M. Knox