Patents by Inventor Riley O. Schaeffer

Riley O. Schaeffer 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).

  • Precursors for boron nitride coatings
    Patent number: 5204295
    Abstract: The disclosure is directed to compositions and methods for forming boron nitride coatings, using polymers derived from tri-substituted borazine and chloroborazine compounds. The polymeric compounds are mixed with ammonia, pyrolized at high temperatures to obtain a high temperature melt, and further converted to boron nitride coatings on various substrates. The polymeric compounds can be stored prior to pyrolysis.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: April 20, 1993
    Assignee: University of New Mexico
    Inventors: Robert T. Paine, Jr., Chaitanya K. Narula, Riley O. Schaeffer, David A. Lindquist, Theodore T. Borek, III
  • Precursor compositions for conversion to boron nitride
    Patent number: 5188757
    Abstract: The disclosure is directed to polymeric B-aminoborazene compounds suitable for pyrolytic conversion to boron nitride. The B-aminoborazine compounds are preferably mixed with an organic solvent and a cross-linking agent to form a polymeric gel. The polymeric gel is then pyrolized to form boron nitride. The polymeric gel is useful to coat various forms and materials.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: February 23, 1993
    Assignee: University of New Mexico
    Inventors: Robert T. Paine, Jr., Chaitanya K. Narula, Riley O. Schaeffer
  • Precursors for boron nitride ceramic coatings
    Patent number: 5082693
    Abstract: The disclosure is directed to polymeric B-aminoborazene compounds suitable for pyrolytic conversion to boron nitride. The B-aminoborazene compounds are preferably mixed with an organic solvent and a cross-linking agent to form a polymeric gel. The polymeric gel is then pyrolized to form boron nitride. The polymeric gel is useful to coat various forms and materials.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: January 21, 1992
    Assignee: University of New Mexico
    Inventors: Robert T. Paine, Jr., Chaitanya K. Narula, Riley O. Schaeffer