Patents by Inventor Stephen Dunmead

Stephen Dunmead 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).

  • High density, metal-based materials having low coefficients of friction and wear rates
    Publication number: 20050152806
    Abstract: High theoretical density, metal-based materials containing graphite or hexagonal boron nitride have low coefficients of friction and wear rates are useful for bearings, bushings and other articles subject to bearing loads.
    Type: Application
    Filed: December 13, 2004
    Publication date: July 14, 2005
    Applicant: OMG Americas, Inc.
    Inventors: Stephen Dunmead, James Marder
  • Rapid conversion of metal-containing compounds to form metals or metal alloys
    Patent number: 6689191
    Abstract: A method of converting metal-containing or metal alloy-containing compounds into a metal or metal alloy by rapidly heating the metal-containing or metal alloy-containing compound to an elevated temperature to instigate conversion and holding the metal-containing or metal alloy-containing compound at the elevated temperature for a time sufficient to effect formation of the metal or metal alloy is an efficient and economical method of producing metals and metal alloys.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: February 10, 2004
    Assignees: OMG Americas, Inc., The Regents of the University of Colorado
    Inventors: Stephen Dunmead, Kauko Johannes Karpale, Alan W. Weimer, Karen J. Buechler, Jacob A. Johnson
  • Rapid conversion of metal-containing compounds to form metal oxides
    Publication number: 20030230169
    Abstract: A method of converting metal-containing compounds into a metal or metal oxide by rapidly heating the metal-containing compound to an elevated temperature to instigate conversion and holding the metal-containing compound at the elevated temperature for a time sufficient to effect formation of the metal or metal oxide is an efficient and economical method of producing metals and metal oxides.
    Type: Application
    Filed: March 7, 2003
    Publication date: December 18, 2003
    Inventors: Stephen Dunmead, Kauko Johannes Karpale, Alan W. Weimer, Karen J. Buechler, Jacob A. Johnson
  • Rapid conversion of metal-containing compounds to form metals or metal oxides
    Publication number: 20030019328
    Abstract: A method of converting metal-containing compounds into a metal or metal oxide by rapidly heating the metal-containing compound to an elevated temperature to instigate conversion and holding the metal-containing compound at the elevated temperature for a time sufficient to effect formation of the metal or metal oxide is an efficient and economical method of producing metals and metal oxides.
    Type: Application
    Filed: February 22, 2001
    Publication date: January 30, 2003
    Inventors: Stephen Dunmead, Kauko Johannes Karpale, Alan W. Weimer, Karen J. Buechler, Jacob A. Johnson