Patents by Inventor Horst Kosche

Horst Kosche 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).

  • Heat-sensitive recording or copying material
    Patent number: 4324420
    Abstract: Heat-sensitive recording or copying materials which contain in their color reactant system, as developers for the color-forming agent, at least one mono- or poly-aldehyde which is electronegatively substituted, especially by halogen, and/or the reaction products thereof with an organic compound containing hydroxyl groups, or the precursors thereof.
    Type: Grant
    Filed: January 11, 1980
    Date of Patent: April 13, 1982
    Assignee: Ciba-Geigy Corporation
    Inventor: Horst Kosche
  • Pressure-sensitive recording or copying material
    Patent number: 4210345
    Abstract: Pressure-sensitive recording or copying materials which contain, in their color reactant system, as developers for the color-forming agent, at least one mono- or poly-aldehyde which is electronegatively substituted, especially by halogen, and/or the reaction products thereof with an organic compound containing hydroxyl groups, or the precursors thereof.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: July 1, 1980
    Assignee: Ciba-Geigy Corporation
    Inventor: Horst Kosche
  • Heat-sensitive recording or copying material
    Patent number: 4202566
    Abstract: Heat-sensitive recording or copying materials which contain, in their color reactant system, as developers for the color-forming agent, at least mono- or poly-aldehyde which is electronegatively substituted, especially by halogen, and/or the reaction products thereof with an organic compound containing hydroxyl groups, or the precursors thereof.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: May 13, 1980
    Assignee: Ciba-Geigy Corporation
    Inventor: Horst Kosche