Patents by Inventor Robert S. Earnhardt

Robert S. Earnhardt 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).

  • Measuring tape
    Patent number: D289742
    Type: Grant
    Filed: January 11, 1985
    Date of Patent: May 12, 1987
    Assignee: Cooper Industries, Inc.
    Inventors: Raymond P. Blakely, Robert S. Earnhardt, Edward H. Meisner
  • Dispersive insert for pipette tips
    Patent number: D782693
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: March 28, 2017
    Assignee: DPX Technologies, LLC
    Inventors: William E. Brewer, Robert S. Earnhardt, Jr., Lim Andrew Lee