Patents by Inventor Jay S. Wallace

Jay S. Wallace 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).

  • Method of thermochemically treating silicon carbide fibers derived from polymers
    Patent number: 5230848
    Abstract: Silicon carbide fibers which are derived from oligomeric and/or polymeric ecursors are modified and strengthened by annealing the silicon carbide fiber at temperatures in excess of 800.degree. C. under a nitrogen atmosphere in the presence of carbon particles. The modified fibers can be used to make ceramic, metal, and plastic composites.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: July 27, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jay S. Wallace, Barry A. Bender, Darla Schrodt
  • Thermochemically treated oligomeric and/or polymeric derived silicon carbide fibers
    Patent number: 5139871
    Abstract: Silicon carbide fibers which are derived from oligomeric and/or polymeric precursors are modified and strengthened in annealing the silicon carbide fiber at temperatures in excess of 800.degree. C. under a nitrogen atmosphere in the presence of carbon particles. The modified fibers can be used to make ceramic, metal, and plastsic composites.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: August 18, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jay S. Wallace, Barry A. Bender, Darla Schrodt