Patents by Inventor Don Joseph Lemen

Don Joseph Lemen 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).

  • Zirconia-based tipped blades having macrocracked structure and process for producing it
    Patent number: 5743013
    Abstract: A compressor or turbine blade having its tip coated with a zirconium-based oxide having a plurality of macrocracks extending at least 100 microns through the coating and the process used to produce such a coating.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: April 28, 1998
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Thomas Alan Taylor, Don Joseph Lemen