Patents by Inventor John Andrew Van Echo

John Andrew Van Echo 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).

  • High-strength cast heat-resistant alloy
    Patent number: 4119456
    Abstract: A high-strength, heat-resistant alloy is provided which comprises, in weight percent, about 0.2 to about 0.75 percent carbon, from about 20.0 to about 30.0 percent chromium, from about 15.0 to about 60.0 percent nickel, up to about 2.0 percent manganese, up to about 2.5 percent silicon, from about 3.0 to about 10.0 tungsten, from about 0.1 to about 1.0 zirconium, with the balance being iron plus incidental impurities.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: October 10, 1978
    Assignee: Steel Founders' Society of America
    Inventors: Donald Brian Roach, John Andrew Van Echo, Albert Mangold Hall