Patents by Inventor Francis A. Serafin

Francis A. Serafin 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).

  • Plastic laser materials
    Patent number: 4037172
    Abstract: A material exhibiting narrow line fluorescence when excited by high energy radiation, hence suitable for laser applications, is formed by dispersion of rare earth ions bonded to organic molecules in the form of an organometallic chelate, in solid solution in a plastic host.
    Type: Grant
    Filed: September 17, 1963
    Date of Patent: July 19, 1977
    Assignee: American Standard, Inc.
    Inventors: Nicolae Filipescu, Nelson McAvoy, Morton R. Kagan, Francis A. Serafin