Patents by Inventor Michael Meierhoefer

Michael Meierhoefer 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).

  • Cassette filter
    Patent number: 7135052
    Abstract: A cartridge filter includes a folded package including filter material and a frame holding the folded package. The frame includes a plurality of profiled strips having identical profiles, and each having two ends. The frame also includes a plurality of corner joints, each disposed at an end of a respective profiled strip. Each corner joint includes an end cap for engaging pair wise with an end cap of an adjacent one of the plurality of corner pieces.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: November 14, 2006
    Assignee: Carl Freudenberg KG
    Inventors: Michael Meierhoefer, Renate Tapper, Thomas Caesar, Heiko Knust, Thorsten Schmitt, Norbert Kuck, Rainer Kaffenberger