Patents by Inventor Ferdinand Schuth

Ferdinand Schuth 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).

  • Luminescent material
    Patent number: 6133688
    Abstract: A luminescent material of general formulaLn.sub.y/3 Na.sub.x-y (Al.sub.x Si.sub.192-x O.sub.384)(MO.sub.3).sub.zwherein 0<x<96, 0<y<96, y<x and z<20, and Ln comprises one or more elements chosen from the group formed by Sc, Y, La and the Lanthanides and wherein M comprises one or more elements chosen from the group formed by Mo, W, V, Nb and Ta. Luminescent materials of this general formula are relatively cheap and are very suitable for use in low pressure mercury discharge lamps of the three band type.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: October 17, 2000
    Assignee: U.S. Phillips Corporation
    Inventors: Thomas Justel, Carolin Borgmann, Ferdinand Schuth