Patents by Inventor James C. Thomas

James C. Thomas 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).

  • Cathodic particle-assisted etching of substrates
    Patent number: 5733432
    Abstract: An electrically conductive substrate (20) is etched by providing an etchant solution having finely divided, electrically conductive particles (40) mixed therein. The electrically conductive particles (40) are made of a material that is cathodic to the substrate (20) and does not dissolve into the etchant solution, with a preferred such material being graphite. The substrate (20) is placed into the etchant solution having the particles (40) therein so that the particles (40) contact the substrate (20), and etched for a period of time sufficient to remove a desired amount of the substrate material. The substrate (20) may be provided with an apertured mask (24) prior to being placed into the etchant solution.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: March 31, 1998
    Assignee: Hughes Electronics
    Inventors: Ronald L. Williams, James C. Thomas
  • Pedestal fan
    Patent number: D414256
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: September 21, 1999
    Assignee: Hunter Fan Company
    Inventor: James C. Thomas, Jr.
  • Combined canopy, downrod, motor housing, blade medallions and light fixture unit for a ceiling fan
    Patent number: D414860
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: October 5, 1999
    Assignee: Hunter Fan Company
    Inventor: James C. Thomas, Jr.