Patents by Inventor George Hugh Criss

George Hugh Criss 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).

  • Monolithic refractories
    Patent number: 3998648
    Abstract: The disclosure relates to monolithic refractories which can be used on the job site without any preparation, i.e. addition of additives and consists of a high alumina containing material, a reactive alumina containing material, kaolin clay and crude kyanite to which are added the combination of phosphoric acid and water.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: December 21, 1976
    Assignee: Dresser Industries, Inc.
    Inventors: Stephen Whitney Thrower, George Hugh Criss, Daniel Eusebius Moniot
  • Refractory mortar composition
    Patent number: 3986884
    Abstract: A refractory composition suitable for use as a mortar which consists of chromic oxide and high alumina refractory material and a bonding material consisting of anhydroglucose polymer and phosphoric acid, the composition being substantially free of SiO.sub.2.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: October 19, 1976
    Assignee: Dresser Industries, Inc.
    Inventors: George Hugh Criss, Ernest Paul Weaver