Patents by Inventor Ladislav Havranek

Ladislav Havranek 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).

  • Toy airplane
    Patent number: D254918
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: May 6, 1980
    Assignees: Ladislav Havranek, Werner W. Kleeman
    Inventor: Ladislav Havranek