Patents by Inventor Julian Timothy Spencer

Julian Timothy Spencer 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).

  • Surface treatment of concrete
    Patent number: 7521001
    Abstract: A method of treating a surface for the removal of a surface portion comprising irradiating the surface with laser light, wherein the irradiation is effected by covering said surface in a sequential manner with a plurality of discrete spots of laser light. The spots of laser light overlap and may be arranged in a geometric arrangement defined by the locations of the centers of the spots of laser light. The spots of laser light may be applied sequentially.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: April 21, 2009
    Assignee: Nuclear Decommissioning Authority
    Inventors: Stephen Christopher Neil Brown, Julian Timothy Spencer, Andrew William Benjamin, Tristan Goronwy Thomas
  • Removing contamination
    Patent number: 5882487
    Abstract: A method of removing from the surface of an object a contaminating substance buried in an organic substance on the surface of the object, the method including directing a laser beam at the organic substance to cause chemical change of the organic material or direct removal of the organic material by laser generated chemical change.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: March 16, 1999
    Assignee: British Nuclear Fuels, Plc.
    Inventors: Lin Li, Julian Timothy Spencer