Patents by Inventor Miroslav Papanek

Miroslav Papanek 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).

  • Cigarette filter
    Patent number: 4124033
    Abstract: A cigarette filter made of cellulose material in which has been dispersed particles of finely comminuted bark of coniferous wood species.
    Type: Grant
    Filed: July 24, 1974
    Date of Patent: November 7, 1978
    Assignee: Vyzkumny Ustav Chemickych Zarizeni
    Inventors: Jaroslav Zizka, Karel Janousek, Miroslav Papanek