Patents by Inventor Karin Reiniger

Karin Reiniger 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).

  • Aqueous printing ink compositions for ink jet printing
    Patent number: 5106417
    Abstract: Aqueous, low viscosity, stable printing ink compositions suitable for drop-on-demand ink jet printing contain specific selected amounts of a solid pigment preparation, a water-soluble organic solvent, a humectant and water so that the compositions resist clogging ink jet nozzles and give prints of excellent image resolution which are resistant to water and migration.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: April 21, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Hanspeter Hauser, Karin Reiniger