Patents by Inventor Maria K. Sawford

Maria K. Sawford 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).

  • Wear resistant high temperature alloy
    Patent number: 7651575
    Abstract: An Fe—Ni-based alloy that has improved wear resistance at high temperature over Ni-based superalloys is provided. The alloy is particularly useful for manufacturing engine exhaust valves and other high temperature engine components subjected to corrosion, wear and oxidation.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: January 26, 2010
    Assignee: Eaton Corporation
    Inventors: Maria K. Sawford, Shubhayu Sinharoy, Sundaram L. Narasimhan, Alojz Kajinic, Andrzej L. Wojcieszynski, Jeryl K. Wright
  • WEAR RESISTANT HIGH TEMPERATURE ALLOY
    Publication number: 20080008617
    Abstract: An Fe—Ni-based alloy that has improved wear resistance at high temperature over Ni-based superalloys is provided. The alloy is particularly useful for manufacturing engine exhaust valves and other high temperature engine components subjected to corrosion, wear and oxidation.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 10, 2008
    Inventors: Maria K. Sawford, Shubhayu Sinharoy, Sundaram L. Narasimhan, Alojz Kajinic, Andrzej L. Wojcieszynski, Jeryl K. Wright
  • Corrosion and wear resistant alloy
    Patent number: 7288157
    Abstract: A powder metallurgy corrosion and wear resistant tool steel article, and alloy thereof. The article is manufactured by hot isostatic compaction of nitrogen atomized, prealloyed high-chromium, high-vanadium, high-niobium powder particles. The alloy is characterized by very high wear and corrosion resistance, making it particularly useful for use in the manufacture of components for advanced bearing designs as well as machinery parts exposed to severe abrasive wear and corrosion conditions, as encountered, for example, in the plastic injection molding industry and food industry.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: October 30, 2007
    Assignee: Crucible Materials Corp.
    Inventors: Alojz Kajinic, Andrzej L. Wojcieszynski, Maria K. Sawford