Patents by Inventor Byron R. Sever

Byron R. Sever 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).

  • Patent number: 7044376
    Abstract: Authentication systems, apparatus, and methods authenticate an identification marking including a nanocrystalline material. One or more properties of the marking are ascertained to provide a measured profile. The measured profile is compared to at least one member of a closed set of reference profiles. Each reference profile has predetermined values of one or more properties. Each reference profile is unique within the set. At least one reference profile is characteristic of an indicator material in a nanocrystalline morphology and non-characteristic of the same indicator material in a bulk morphology.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: May 16, 2006
    Assignee: Eastman Kodak Company
    Inventors: David J. Nelson, Seshadri Jagannathan, Ramesh Jagannathan, Thomas N. Blanton, Sridhar Sadasivan, Byron R. Sever, David D. Tuschel
  • Patent number: 5391884
    Abstract: Phosphor compositions are disclosed comprised of a BaGd.sub.2 O.sub.4 host which is activated by at least one of Tb and Sm. These phosphors are useful as storage phosphors. An imaging plate utilizing these phosphors is also disclosed.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: February 21, 1995
    Assignee: Eastman Kodak Company
    Inventors: Kurt D. Sieber, Lisa B. Todd, Byron R. Sever
  • Patent number: 5132192
    Abstract: An x-ray intensifying screen is disclosed containing magnesium tantalum niobium oxide as a phosphor in an ordered corundum crystalline form. In addition, small amounts of at least one alkali metal other than lithium can be present. Potassium, rubidium and cesium are each capable of increasing luminescence. The x-ray intensifying screens are useful in radiographic applications where it is important to reduce subject exposure to x-rays and also to create clear, sharp images.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: July 21, 1992
    Assignee: Eastman Kodak Company
    Inventors: Kurt D. Sieber, Lisa B. Todd, Byron R. Sever