Patents by Inventor Leslie G. Fritzemeier

Leslie G. Fritzemeier 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).

  • Low vacuum vapor process for producing superconductor articles with epitaxial layers
    Patent number: 6022832
    Abstract: A method for fabricating superconductor articles with an epitaxial layer is described. The method can be performed under conditions of relatively high pressure and low substrate surface temperature. The resulting epitaxial layers can demonstrate various advantageous features, including low pore density and/or inclusions with small average particle size diameter.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: February 8, 2000
    Assignee: American Superconductor Corporation
    Inventors: Leslie G. Fritzemeier, David M. Buczek
  • Hot isostatic pressing of single crystal superalloy articles
    Patent number: 5573609
    Abstract: A method for the densification of a shaped nickel base single crystal alloy article utilizing a pre-HIP, a hot isostatic pressing (HIP) step, and post-HIP solution heat treatment to enhance removal of casting porosity in a finished article.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: November 12, 1996
    Assignee: Rockwell International Corporation
    Inventor: Leslie G. Fritzemeier
  • Hydrogen resistant alloy
    Patent number: 5158743
    Abstract: A precipitation hardening, high strength alloy, having a composition comprising in weight percent, 25.0% nickel, 15.0% chromium, 1.25% molybdenum, 0.25% vanadium, 2.65% titanium, 0.25% aluminum, 0.005% carbon, and the balance iron with incidental impurities.
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: October 27, 1992
    Assignee: Rockwell International Corporation
    Inventors: Leslie G. Fritzemeier, Thomas R. Palamides, John G. Somerville
  • Hydrogen embrittlement resistant structural alloy
    Patent number: 5137684
    Abstract: A precipitation hardening, high strength alloy, characterized by a low, controlled co efficient of thermal expansion and resistance to hydrogen environment embrittlement.
    Type: Grant
    Filed: March 6, 1991
    Date of Patent: August 11, 1992
    Assignee: Rockwell International Corporation
    Inventor: Leslie G. Fritzemeier
  • Hot isostatic pressing of single crystal superalloy articles
    Patent number: 4981528
    Abstract: A method for the densification of a shaped nickel base single crystal alloy article utilizing a pre-HIP, an improved hot isostatic pressing (HIP) step, and post-HIP solution heat treatment to enhance removal of casting porosity in a finished article.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: January 1, 1991
    Assignee: Rockwell International Corporation
    Inventors: Leslie G. Fritzemeier, Jon D. Frandsen