Patents by Inventor Gerard Laurens Vanreusel

Gerard Laurens Vanreusel 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).

  • Hardening developers for silver halide photography
    Patent number: 4078932
    Abstract: A hardening developer is described which comprises at least one silver halide developing agent and a reaction product of a dialdehyde hardener with an aliphatic alcohol.
    Type: Grant
    Filed: April 20, 1976
    Date of Patent: March 14, 1978
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Edwin Hendrik Hazenbosch, Marcel Frans Aelterman, Gerard Laurens Vanreusel
  • Development of photographic silver halide elements
    Patent number: 4013471
    Abstract: Polyoxyethylene compounds carrying thioether groups as substituents on the linear chain are described for accelerating or activating development of exposed silver halide elements.
    Type: Grant
    Filed: November 20, 1973
    Date of Patent: March 22, 1977
    Assignee: AGFA-GEVAERT N.V.
    Inventors: Robert Joseph Pollet, Camille Angelina Vandeputte, Francis Jeanne Sels, Gerard Laurens Vanreusel, Jozef Frans Willems, George Frans VAN Veelen
  • Photographic developer compositions
    Patent number: 3972719
    Abstract: This invention relates to the addition of a nitro-indazole and a polymer containing a plurality of alkylene oxide units and having a molecular weight of at least about 1500, to an aqueous lithographic developer system.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: August 3, 1976
    Assignee: AGFA-GEVAERT N.V.
    Inventors: Gerard Laurens Vanreusel, Raoul Jan Bortels