Patents by Inventor Mark P. Karow

Mark P. Karow 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: 7690321
    Abstract: A collapsible path barrier has at least three integrally-formed wall sections with a plurality of living hinges, as a series, joining each adjacent pair of wall sections, the at least three wall sections including two endmost wall sections joinable to form an upright structure. A collapsible path barrier may include a plurality of interconnected wall sections each having a top-facing side, where one of the top-facing sides has a pocket adapted for securely holding a light. A thermoformed unitary plastic object may include at least two wall sections, at least one hinge member connecting adjacent interior ones of the wall sections' longitudinal sides, the hinge member comprising a plurality of interconnected living hinges, where a nominal thickness of the at least one hinge members of the thermoformed unitary plastic object approximates 0.100 inch.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: April 6, 2010
    Inventors: Mark P. Karow, Timothy A. Neal