Patents by Inventor Matthew Benedict David Mitchell

Matthew Benedict David Mitchell 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).

  • Patent number: 6921506
    Abstract: A pressed thermal insulation body is made by a method comprising the steps of: (1) providing a dry composition consisting of: (a) 10 to 100 percent by weight of volatilised silica containing a dispersion of 0.5 to 6 percent by weight of carbon; (b) 0 to 40 percent by weight of infra-red opacifier; (c) 0 to 50 percent by weight of particulate inorganic filler material; and (d) 0 to 25 percent by weight of reinforcing filaments; (2) pressing the dry composition from step (1) to form a body of a desired shape and density; and (3) heat treating the pressed body at a temperature in the range from 400 degrees Celsius to 1000 degrees Celsius to effect hardening.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: July 26, 2005
    Assignee: Microtherm International Limited
    Inventors: Matthew Benedict David Mitchell, James David Joseph Jackson
  • Publication number: 20020113058
    Abstract: A base (2) for an electric heater comprises a compressed and heat-hardened composition.
    Type: Application
    Filed: February 14, 2002
    Publication date: August 22, 2002
    Inventors: James David Joseph Jackson, Matthew Benedict David Mitchell