Patents by Inventor Mark W. Shurtleff

Mark W. Shurtleff 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: D329427
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: September 15, 1992
    Assignee: Maple Systems, Inc.
    Inventors: Larry J. St. Peter, Mark W. Shurtleff, Jeffrey T. Morovich, Melody L. Mistlin, Douglas E. Nemitz, John L. Lengenfelder