Patents by Inventor Walter E. Utz

Walter E. Utz 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).

  • Aluminous metal sheet
    Patent number: 4157422
    Abstract: This invention relates to useful protective compositions, a method for protecting aluminum and aluminum alloy products against water staining, and a protected aluminum sheet. The method involves applying a continuous film of a protective composition to the surface of the aluminum product. The protective compositions useful for the invention are blends or reaction products of a polybasic acid and a partial ester of a polyol.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: June 5, 1979
    Assignees: Emery Industries, Inc., Reynolds Metals Co.
    Inventors: Robert J. Sturwold, Walter E. Utz, Nicholas Christ, William R. Ford, Jr., George P. Koch
  • Prevention of water staining of aluminum
    Patent number: 4153464
    Abstract: This invention relates to useful protective compositions and a method for protecting aluminum and aluminum alloy products against water staining. The method involves applying a continuous film of a protective composition to the surface of the aluminum product. The protective compositions useful for the invention are blends or reaction products of a polybasic acid and a partial ester of a polyol.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: May 8, 1979
    Assignees: Emery Industries, Inc., Reynolds Metals Company
    Inventors: Robert J. Sturwold, Walter E. Utz, Nicholas Christ, William R. Ford, Jr., George P. Koch