Patents by Inventor William M. McGowan

William M. McGowan 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).

  • Solution and process for treating copper and copper alloys
    Patent number: 4510018
    Abstract: A solution and process for cleaning, deoxidizing and brightening copper or copper alloys comprising immersion of the copper or copper alloy in a solution comprising an aqueous mixture of sulfuric aid and peroxide, a low molecular weight ammonium compound, and a fatty acid amine. The solution may also be used as an etchant and/or to prepare copper or copper alloy for electroplating by modifying the concentrations of the solution's constituents.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: April 9, 1985
    Assignee: The Lea Manufacturing Company
    Inventor: William M. McGowan
  • Phosphate coating composition
    Patent number: 4168983
    Abstract: This invention relates to phosphating ferrous metal surfaces and more particularly, to new phosphating compositions characterized by the use of a cyclic trimetaphosphate as one of the phosphates comprising the phosphating composition. The cyclic trimetaphosphate permits lower operating temperature, increases the concentration tolerance of the phosphating solution to dissolved iron and provides an improved phosphate coating that is thinner, smoother and more corrosion resistant.
    Type: Grant
    Filed: April 13, 1978
    Date of Patent: September 25, 1979
    Inventors: Walter A. Vittands, William M. McGowan