Patents by Inventor Richard K. Ham

Richard K. Ham 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).

  • Street light
    Patent number: D624685
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: September 28, 2010
    Assignee: U.S. Energy Technologies, Inc.
    Inventors: Richard K. Ham, Kyungfan Moon, Byung Il Ham
  • Street light
    Patent number: D653374
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: January 31, 2012
    Assignee: U.S. Energy Technologies, Inc.
    Inventor: Richard K. Ham
  • Tunnel light
    Patent number: D679849
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: April 9, 2013
    Assignee: U.S. Energy Technologies, Inc.
    Inventor: Richard K. Ham