Patents by Inventor Roman Zrobek

Roman Zrobek 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).

  • Ink transfer roller
    Patent number: D258828
    Type: Grant
    Filed: January 31, 1979
    Date of Patent: April 7, 1981
    Assignee: Baker Perkins Holdings, Ltd.
    Inventor: Roman Zrobek