Patents by Inventor Walter D. Heslep

Walter D. Heslep 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).

  • Method for the control of biofilms
    Patent number: 6395189
    Abstract: A process is provided for both removing and controlling biofilms present in industrial cooling and process waters. The process provides a composition which includes the reaction products of an amino base, a formaldehyde, an alkylenepolyamine, and the ammonium salt of an inorganic or organic acid. The composition may be used to remove existing biofilms from process water equipment. Further, lower maintenance dosages may be used to maintain the equipment in a substantially biofilm-free condition.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: May 28, 2002
    Assignee: Polymer Ventures, Inc.
    Inventors: Jon O. Fabri, Walter D. Heslep
  • Bio-film control
    Patent number: 6149822
    Abstract: A process is provided for both removing and controlling biofilms present in industrial cooling and process waters. The process provides a composition which includes the reaction products of an amino base, a formaldehyde, an alkylenepolyamine, and the ammonium salt of an inorganic or organic acid. The composition may be used to remove existing biofilms from process water equipment. Further, lower maintenance dosages may be used to maintain the equipment in a substantially biofilm-free condition.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: November 21, 2000
    Assignee: Polymer Ventures, Inc.
    Inventors: Jon O. Fabri, Walter D. Heslep