Patents by Inventor Corrie B. Martin

Corrie B. Martin 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).

  • Making large, single crystal, 123 YBCO superconductors
    Patent number: 6046139
    Abstract: We make large (in excess of 2 cm in diameter), single crystal YBa.sub.2 Cu.sub.3 O.sub.7-x [123 YBCO] crystals, where x.ltoreq.0.6, in a seventeen step process or some variant thereof from finely ground and well mixed 123 YBCO and 211 YBCO powders with a small amount of Pt by controlling the rate of cooling from within a compact of the powders using a temperature gradient in the radial and axial planes (independently) of about 1-1.degree. C./inch diameter of compact to nucleate the crystal growth. We promote crystal growth as well using a samarium oxide seed crystal, preferably SmBa.sub.2 Cu.sub.3 O.sub.(7-y), where y.ltoreq.1.6. After nucleation we cool the compact slowly at a rate from about 0.1-1.degree. C./hr to promote the single crystal development.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: April 4, 2000
    Assignee: The Boeing Company
    Inventors: Kay Y. Blohowiak, Darryl F. Garrigus, Thomas S. Luhman, Kevin E. McCrary, Michael Strasik, Ilhan Aksay, Fatih Dogan, William C. Hicks, Corrie B. Martin
  • Ceramic precursor mixture and technique for converting the same to ceramic
    Patent number: 5061682
    Abstract: Ceramic precursor mixtures containing a metal cation, a carbohydrate, and an anion capable of participating in an anionic oxidation-reduction reaction with the carbohydrate for continuous or batchwise drying and pyrolyzing to provide ceramic powders.
    Type: Grant
    Filed: January 17, 1990
    Date of Patent: October 29, 1991
    Assignee: The Washington Technology Center
    Inventors: Ilhan A. Aksay, Chan Han, Gary D. Maupin, Corrie B. Martin, Randal P. Kurosky, Gregory C. Stangle