Patents by Inventor Hendrik Hubert Sneyers

Hendrik Hubert Sneyers 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).

  • Electrophotographic material
    Patent number: 3932418
    Abstract: Electrophotographical recording process wherein a pattern of increased conductivity is produced image-wise in a photoconductive insulating recording layer containing as essential photoconductive compound a photoconductive 1,2,3,4-tetrahydroquinoline. The photoconductive compound can be chemically and spectrally sensitized and charged either negatively or positively.
    Type: Grant
    Filed: October 18, 1973
    Date of Patent: January 13, 1976
    Assignee: AGFA-GEVAERT N.V.
    Inventors: Wilhelmus Janssens, Johannes Josephus Vanheertum, Robert Joseph Pollett, Hendrik Hubert Sneyers, Jozef Aime Dierckx