Patents by Inventor David H. Melchert

David H. Melchert 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).

  • Transparent portable cooler
    Patent number: D634982
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: March 29, 2011
    Inventors: Estella M. Melchert, David H. Melchert