Patents by Inventor Walter von Meer

Walter von Meer 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).

  • Waterproof photographic paper
    Patent number: 4384040
    Abstract: A waterproof paper support having a photographic emulsion which is coated on both sides with a waterproof synthetic resin. The coating which carries the photographic emulsion preferably is a prepolymer of an unsaturated polyester resin which can be polymerized by electron bombardment. This coating contains at least 20% by weight of a white light-reflecting pigment having a particle size in excess of 0.1 micron.
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: May 17, 1983
    Assignee: Felix Schoeller, Jr.
    Inventor: Walter von Meer
  • Photographic paper base with improved durability
    Patent number: 4352861
    Abstract: A photographic paper base comprises a base paper which bears two resin layers arranged one on top of the other on at least one side. The side of the paper which is destined to receive the photographic layer is coated with two resin layers lying one on top of the other, i.e., a first layer lying on the paper and the second layer arranged to contact the photographic layer. Only the second layer contains stabilizers and/or antioxidants, these being preferably in the range 0.03 to 2.0% by weight.
    Type: Grant
    Filed: October 8, 1980
    Date of Patent: October 5, 1982
    Assignee: Felix Schoeller, Jr. GmbH & Co. KG
    Inventors: Walter von Meer, Uwe Jensen, Reiner Anthonsen
  • Method of preparing a carrier material for photography
    Patent number: 4327174
    Abstract: This invention relates to a carrier material for photographic purposes which is formed of paper coated with a synthetic resin. The paper contains a water soluble inorganic salt that enhances its drying by microwaves. In a preferred embodiment, the paper contains starch.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: April 27, 1982
    Assignee: Felix Schoeller, Jr.
    Inventor: Walter von Meer