Patents by Inventor Joseph F. MUHA

Joseph F. MUHA 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).

  • MARAGING STEEL ARTICLE AND METHOD OF MANUFACTURE
    Publication number: 20120230859
    Abstract: A fully dense, powder-metallurgy produced maraging steel alloy article of prealloyed powder for use as a tool for high temperature applications. The article in the as-produced condition having a hardness less than 40 HRC to provide machinability and thereafter the article upon maraging heat treatment having a hardness greater than 45 HRC. A method for producing this article comprises compacting prealloyed powder to produce a fully dense article having a hardness less than 40 HRC and thereafter maraging heat treating to a hardness greater than 45 HRC.
    Type: Application
    Filed: February 23, 2012
    Publication date: September 13, 2012
    Inventors: Joseph F. MUHA, Andrzej L. WOJCIESZYNSKI, Brian J. MCTIERNAN