Patents by Inventor Monika Kohla

Monika Kohla 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).

  • Inking ribbon for transferring color under the influence of heat
    Patent number: 4897310
    Abstract: An inking ribbon for transferring color under the influence of heat. The inking ribbon including a carrier layer, an ink layer, and a decomposable components that promotes the transfer of the color upon the application of heat. The decomposable component is cellulose nitrate, the decomposition temperature of the cellulose nitrate is variable in the range between 100.degree. C. and 150.degree. C. with catalytic additives.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: January 30, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Beyer, Monika Kohla, Manuela Schneider, Eduard Schuetz