Patents by Inventor Mark J. Schoenfeld

Mark J. Schoenfeld 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: D249650
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: September 26, 1978
    Inventor: Mark J. Schoenfeld