Patents by Inventor Doreen Edwards

Doreen Edwards 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 manufacturing tin oxide-based ceramic resistors & resistors obtained thereby
    Publication number: 20060162381
    Abstract: A method of manufacturing a tin oxide-based bulk ceramic resistor comprises steps of: (a) forming a first powder comprised of an antimony-doped tin oxide material; (b) providing a second powder comprised of a vitreous glass frit; (c) forming a third, mixed powder by mixing together preselected amounts of the first and second powders; (d) forming the third, mixed powder into a solid body of preselected shape and dimensions; and (e) treating the body at a preselected elevated temperature for a preselected interval. Also disclosed are antimony-doped tin oxide-based bulk ceramic resistors.
    Type: Application
    Filed: January 25, 2005
    Publication date: July 27, 2006
    Inventors: Rafal Pabich, Doreen Edwards, Hamilton Black, Michael Ugorek
  • Method of manufacturing a shaped article from a powdered precursor
    Patent number: 5382405
    Abstract: A method of manufacturing a shaped article from a powdered precursor, wherein the components of the powdered precursor are subjected to a self-propagating high-temperature synthesis (SHS) reaction and are consolidated essentially simultaneously. The shaped article requires essentially no machining after manufacture.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: January 17, 1995
    Assignee: Inland Steel Company
    Inventors: Kenneth F. Lowrance, II, Eric C. Knorr, William M. Goldberger, Daniel Boss, Doreen Edwards