Patents by Inventor Gary D. Achenbach

Gary D. Achenbach 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).

  • Fireproofing composition
    Patent number: 4118325
    Abstract: A fireproofing composition comprised of a low density matrix material, such as rigid foamed sodium silicate, having an expandable hydrated mineral material such as unexpanded vermiculite or unexpanded perlite incorporated therein.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: October 3, 1978
    Assignee: Continental Oil Company
    Inventors: Donald E. Becker, Gary D. Achenbach, George W. Stuever
  • Method for retarding scale formation
    Patent number: 4115606
    Abstract: Scale formation on metallic surfaces exposed to liquids containing scale-forming components is retarded by coating the surfaces with a mixture of a low surface energy polymer having hydrophobic properties and a low surface energy filler having hydrophilic properties.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: September 19, 1978
    Assignee: Continental Oil Company
    Inventors: Orwin G. Maxson, Gary D. Achenbach