Patents by Inventor Timothy Frisk

Timothy Frisk 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).

  • Ceramic-coated tungsten powder
    Patent number: 7989064
    Abstract: The coating the tungsten powder particles with a ceramic barrier suppresses the leachability of tungsten in aqueous media. Preferably, the ceramic coating substantially encapsulates each particle of tungsten and has a thickness of at least about 30 nm and, more preferable, from about 200 nm to about 500 nm. Examples of ceramic coatings that may be used include, but are not limited to, aluminum oxide (alumina), aluminum oxyhydroxide (AlOOH), zirconium oxide (zirconia), cerium oxide (ceria), hafnium oxide (hafnia), and magnesium oxide (magnesia).
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: August 2, 2011
    Assignee: Global Tungsten & Powders Corp.
    Inventors: Hans-Joachim Lunk, Ricky D. Morgan, Henry J. Stevens, Dale E. Benjamin, Tuan A. Dang, Timothy A. Frisk
  • Ceramic-coated Tungsten Powder
    Publication number: 20060199001
    Abstract: The coating the tungsten powder particles with a ceramic barrier suppresses the leachability of tungsten in aqueous media. Preferably, the ceramic coating substantially encapsulates each particle of tungsten and has a thickness of at least about 30 nm and, more preferable, from about 200 nm to about 500 nm. Examples of ceramic coatings that may be used include, but are not limited to, aluminum oxide (alumina), aluminum oxyhydroxide (AlOOH), zirconium oxide (zirconia), cerium oxide (ceria), hafnium oxide (hafnia), and magnesium oxide (magnesia).
    Type: Application
    Filed: January 9, 2006
    Publication date: September 7, 2006
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Hans-Joachim Lunk, Ricky Morgan, Henry Stevens, Dale Benjamin, Tuan Dang, Timothy Frisk