Patents by Inventor Josef Polansky

Josef Polansky 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).

  • Plastic modified writing compositions
    Patent number: 4229334
    Abstract: A plastic modified writing or inscribing composition obtained by incorporating plastics of different solvent solubility in the composition is prepared. When applied to a suitable surface, spreading of the composition is accomplished by subsequent solvent treatment.
    Type: Grant
    Filed: December 19, 1978
    Date of Patent: October 21, 1980
    Assignee: Koh-i-noor Hardtmuth, oborovy podnik
    Inventors: Bedrich Klabacka, Josef Polansky, Josef Hynek