Patents by Inventor Brett A. Sigurdson

Brett A. Sigurdson 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).

  • Container stack and separating element therefor
    Patent number: 7467714
    Abstract: The container stack includes a plurality of stacked containers and separator elements having open portions, with the outside containers in each level received in an opening. The outside openings engage the outer surface of the outside containers and press the outside containers inwardly to secure the containers in position.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: December 23, 2008
    Assignee: Plastipak Packaging, Inc.
    Inventors: William A. Slat, Richard C. Darr, James R. Steinke, Michael E. Greyerbiehl, Brett A. Sigurdson
  • Container stack and separating element therefor
    Publication number: 20060283755
    Abstract: The container stack includes a plurality of stacked containers and separator elements having open portions, with the outside containers in each level received in an opening. The outside openings engage the outer surface of the outside containers and press the outside containers inwardly to secure the containers in position.
    Type: Application
    Filed: June 15, 2005
    Publication date: December 21, 2006
    Inventors: William Slat, Richard Darr, James Steinke, Michael Greyerbiehl, Brett Sigurdson