Patents by Inventor William Lodewijk Kuijer

William Lodewijk Kuijer 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).

  • Spray-coating method of window forming in tubular lamp
    Patent number: 4064291
    Abstract: A method of applying a longitudinally extending coating of a reflecting or luminescent material in a tubular lamp by means of a nozzle which travels along the longitudinal axis of the lamp envelope. A plurality of spraying jets are so disposed that the suspension or solution, lands on a portion of the envelope immediately adjacent to the slot to be formed.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: December 20, 1977
    Assignee: U.S. Philips Corporation
    Inventors: William Lodewijk Kuijer, Peter Ivan Sygall, Paulus Johannes Wennekes