Patents by Inventor Hans Bex

Hans Bex 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).

  • Circuit arrangement for starting and operating a gas- and/or vapor discharge lamp
    Patent number: 4358711
    Abstract: A circuit arrangement for starting and operating a discharge lamp by means of an electronic ballast includes a series arrangement of a PTC resistor and an ohmic resistor connected in parallel with an electronic switch of the ballast, with only the PTC resistor being in parallel with a control circuit of the electronic switch. The value of the ohmic resistor is 8 to 12 times the cold resistance of the PTC resistor.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: November 9, 1982
    Assignee: U.S. Philips Corporation
    Inventor: Hans Bex
  • Circuit arrangement in strip line technique for a wide band balancing element
    Patent number: 4034316
    Abstract: For the purpose of increasing the bandwidth the hybrid ring which is known per se is extended by means of half a ring having a specific optimum length. The arrangement can be readily produced in the fold stripline technique.
    Type: Grant
    Filed: October 7, 1975
    Date of Patent: July 5, 1977
    Assignee: U.S. Philips Corporation
    Inventor: Hans Bex