Patents by Inventor MichaeI Karl Crawford

MichaeI Karl Crawford 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).

  • NOVEL RARE-EARTH DOPED FLUORIDES AND PROCESS FOR PREPARING
    Publication number: 20120319046
    Abstract: The present invention is directed to rare-earth doped solid state solutions of alkaline earth fluorides having novel luminescence properties, and to a process for preparing them. The invention is useful as identifying markers on articles. Other uses include phosphors for plasma displays, optical frequency multipliers, optical amplifiers and the like.
    Type: Application
    Filed: December 16, 2011
    Publication date: December 20, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: MichaeI Karl Crawford, Kurt Richard Mikeska