Patents by Inventor Jeroen P. Balm

Jeroen P. Balm 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: 5563474
    Abstract: An electrodeless low-pressure discharge lamp includes a translucent discharge-vessel of a glass that contains at least 5 weight % sodium, encloses a discharge-space and includes a mercury containing fill. The lamp further includes a device to maintain an electrical discharge in the discharge space and an auxiliary radiation source that emits at least 0.5 mW of visible radiation when activated, to provide a relatively short ignition time.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: October 8, 1996
    Assignee: U.S. Philips Corporation
    Inventors: Johannes H. Wessels, Jeroen P. Balm, Jacob Schlejen, Petrus H. Antonis