Patents by Inventor Paul T. Kilhefiner, III

Paul T. Kilhefiner, III 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).

  • Vapor phase artificial aging of metal alloys using fluorochemicals
    Patent number: 4929283
    Abstract: Artificial aging of metal alloys in the process of precipitation hardening is performed in the elevated temperature vapor of a perfluorochemical to reduce temperature fluctuations, preserve alloy integrity and avoid environmentally detrimental process conditions and by-products.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: May 29, 1990
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John C. W. King, Donald J. Bowe, Paul T. Kilhefiner, III