Patents by Inventor Lambertus W. J. Manders

Lambertus W. J. Manders 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 applying luminescent material to a glass support
    Patent number: 4233336
    Abstract: To apply of a coat of granular luminescent material which comprises an yttrium compound an aqueous suspension is used which contains an alginate as a binder.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: November 11, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Josephus A. Verdult, Lambertus W. J. Manders
  • Fluorescent lamp with superimposed luminescent layers
    Patent number: 4088923
    Abstract: Electric discharge lamp in which ultraviolet radiation is converted into light by means of two superposed luminescent layers. The two layers have about the same chromaticity point. The luminescent material in the layer more remote from the discharge is cheaper than that in the other layer.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: May 9, 1978
    Assignee: U.S. Philips Corporation
    Inventor: Lambertus W. J. Manders