Patents by Inventor Willem Van Oosterom

Willem Van Oosterom 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: 6157457
    Abstract: A counting device that detects intensity differences in reflections coming from stacked thin objects. The device comprises a radiation source generating a radiation beam and a photoelectric detector detecting the intensity differences in the radiation reflected by the objects, and is provided with an optical pathway placed between the objects and the photoelectric detector. The optical pathway comprises a diaphragm having a diaphragm opening which, in relation to the dimension of the beam of reflected radiation reaching the diaphragm, is smaller.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: December 5, 2000
    Assignee: Function Control Research B.V.
    Inventor: Willem Van Oosterom