Patents by Inventor Michael C. Ferren

Michael C. Ferren 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).

  • Phone clip shaped like a baseball cap
    Patent number: D581656
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: December 2, 2008
    Inventors: Michael A. Valencia, Michael C. Ferren
  • Expandable backpack
    Patent number: D609459
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: February 9, 2010
    Inventors: Michael C. Ferren, Michael A. Valencia