Patents by Inventor John A. Mathisrud

John A. Mathisrud 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).

  • Drain washing apparatus
    Patent number: 7063095
    Abstract: The present invention relates to apparatus for washing drains. The apparatus includes a support and a nozzle, which are adapted and configured to convey fluid to and to wash a drain. Typically, the apparatus includes a wand as the support and a ball or head as the nozzle. The apparatus can also include a fluid retainer, which can keep the dispensed fluid in and/or near the drain.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: June 20, 2006
    Assignee: Ecolab Inc.
    Inventors: S. John Barcay, Jamie W. Lerbs, John A. Mathisrud, Thomas L. Harris
  • Drain washing apparatus
    Publication number: 20030230325
    Abstract: The present invention relates to apparatus for washing drains. The apparatus includes a support and a nozzle, which are adapted and configured to convey fluid to and to wash a drain. Typically, the apparatus includes a wand as the support and a ball or head as the nozzle. The apparatus can also include a fluid retainer, which can keep the dispensed fluid in and/or near the drain.
    Type: Application
    Filed: June 17, 2002
    Publication date: December 18, 2003
    Inventors: S. John Barcay, Jamie W. Lerbs, John A. Mathisrud, Thomas L. Harris