Patents by Inventor Mark William Townsend

Mark William Townsend 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).

  • Insulation material
    Patent number: 6342088
    Abstract: A granular thermal insulating material comprising rice hull ash, ceramic clay binder, rice bran and an exfoliating agent, and methods to produce the insulating material.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: January 29, 2002
    Assignee: Ricegrower's Cooperative Limited
    Inventors: Peter Waldemar Klatt, Mark William Townsend