Patents by Inventor Robin W. Thornhill

Robin W. Thornhill 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).

  • Relating to the sanitation of swimming pool water
    Patent number: 5130033
    Abstract: A method for sanitizing swimming pool water comprises introducing in controlled amounts, a bromide donor and an oxidizing agent therefor to provide the desired sanitizing action in the pool, measuring the levels of both active bromine and bromide in the treated water and regulating the quantity of materials introduced into the pool accordingly.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: July 14, 1992
    Assignee: Total Pool Chemicals Ltd.
    Inventor: Robin W. Thornhill