Patents by Inventor Eric H. Knudsen

Eric H. Knudsen 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).

  • Patent number: 5875946
    Abstract: A portage system for supporting light watercraft such as a canoe or kayak includes a frame having opposed first and second upright arms, a plurality of cross-struts interconnecting the arms, a pair of shoulder straps secured to a cross strut and a hip belt secured adjacent bottom ends of the upright members to removably secure the frame to a user. First and second thwart cradles are adjustably secured to top ends of the first and second upright arms so that a center thwart of the watercraft may engage the first and second thwart cradles to support the watercraft at varying heights above the user.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: March 2, 1999
    Inventor: Eric H. Knudsen