Patents by Inventor Mark I. Copeland

Mark I. Copeland 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).

  • Method for providing ferritic-iron-based alloys
    Patent number: 4087287
    Abstract: A strengthened creep resistant ferritic iron alloy is provided by alloying the iron with two or more alloying metals of the type that form an intermediate Laves phase in the alloy having the composition Fe.sub.2 X, where X is the alloying metal. One of the alloying metals comprises one to five weight percent of tantalum and/or columbium while the other metal comprises one to eight weight percent of molybdenum and/or tungsten. The total of the Laves phase forming alloying metals is no more than ten weight percent in excess of that necessary to react with interstitial elements that may be added to the alloy.
    Type: Grant
    Filed: April 15, 1977
    Date of Patent: May 2, 1978
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: John S. Dunning, Mark I. Copeland, John S. Howe