Patents by Inventor Otto Daghofer

Otto Daghofer 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 of producing homogenous ingots of high-melting, nitrogen-containing alloys
    Patent number: 4027720
    Abstract: In a method of producing homogenous ingots of high-melting, nitrogen-containing alloys, whose nitrogen contents are above the solubility limit at atmospheric pressure, according to the electric slag remelting process and using a pressure above atmospheric, a composite electrode consisting of at least one core made of a nitrogen-containing alloy and a jacket made of a nitrogen-containing alloy is used, wherein one of the nitrogen contents is higher and the other one is lower than that of the ingot to be produced.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: June 7, 1977
    Assignee: Vereinigte Edelstahlwerke AG
    Inventors: Erwin Plockinger, Otto Daghofer, Farouk Barakat