Patents by Inventor Brian E. Prewer

Brian E. Prewer 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).

  • Radiation absorber and method of making it
    Patent number: 4942402
    Abstract: An absorber for radiation of frequency of the order of 1 THz is formed of a body of cured silicone-based elastomer containing an inert, powdered siliceous filler. Both the elastomer and the filler are electrically insulating and the surface of the absorber that is exposed to the radiation is preferably profiled to enhance absorption of the radiation. The profiling preferably takes the form of an array of sharp-pointed pyramids having rectangular or triangular bases. A method of moulding such absorbers is also disclosed.
    Type: Grant
    Filed: October 26, 1988
    Date of Patent: July 17, 1990
    Assignee: Thorn Emi Electronics Limited
    Inventors: Brian E. Prewer, Brian Milner