Patents by Inventor Louis Benjamin Beijer

Louis Benjamin Beijer 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).

  • Method of operating a self-stabilizing discharge lamp
    Patent number: 4039880
    Abstract: The invention relates to a method of operating a self-stabilizing discharge lamp provided with a discharge tube which is filled with sodium and xenon.According to the invention the discharge lamp is operated in such a manner that a sodium pressure is produced in the discharge space which results in a high luminous efficacy.
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: August 2, 1977
    Assignee: U.S. Philips Corporation
    Inventors: Louis Benjamin Beijer, Mijndert Koedam, Jacobus Marinus Maria Claassens, Johannes Adrianus Josephus Maria Van Vliet