Patents by Inventor Andries Ellens

Andries Ellens 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).

  • Highly efficient fluorescent material
    Publication number: 20020105269
    Abstract: Fluorescent material from the class of the silicide nitrides, Sr being used as cation, and the silicide nitrides being doped with trivalent Ce.
    Type: Application
    Filed: January 31, 2002
    Publication date: August 8, 2002
    Applicant: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbh
    Inventors: Andries Ellens, Guenter Huber