Patents by Inventor Gunther Hunger

Gunther Hunger 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).

  • Pressure-sensitive recording material
    Patent number: 4859650
    Abstract: A pressure-sensitive recording material is disclosed, having microcapsules containing a triphenylmethane leuco-dye dissolved in a solvent composed at least 80% of plant, animal or paraffin oils, the microcapsule walls being formed of a wall material which is water-soluble or water-dispersible before the formation of the microcapsules.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: August 22, 1989
    Assignee: Feldmuhle Aktiengesellschaft
    Inventors: Bodo Hilterhaus, Gunther Hunger