Patents by Inventor Don Sproul

Don Sproul 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).

  • Cationic chemiluminescent monomers and polymers
    Patent number: 6077461
    Abstract: Luminol derived monomers, and luminol derived water-treatment polymers formed from the luminol derived monomers, as well as methods for monitoring of the chemiluminescence of such water-treatment polymers are disclosed. The novel chemiluminescent polymers require only a very low level of incorporation of the chemiluminescent moiety, and are useful for monitoring, even in systems containing impurities which either quench fluorescence or fluoresce themselves.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: June 20, 2000
    Assignee: Nalco Chemical Company
    Inventors: Patrick G. Murray, Amy M. Tseng, Don Sproul