Patents by Inventor David K. MARKS

David K. MARKS 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).

  • INTEGRATED HAND CULTIVATOR/SIFTER APPARATUS
    Publication number: 20130228352
    Abstract: A hand-held integrated cultivator/sifting apparatus is provided herein.
    Type: Application
    Filed: August 30, 2012
    Publication date: September 5, 2013
    Inventor: David K. MARKS