Patents by Inventor Wolfgang Thon

Wolfgang Thon 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).

  • Petri dish
    Patent number: 4255522
    Abstract: A petri dish has on its bottom a plurality of zones surrounded by elevated ridges spatially separating the zones from one another.
    Type: Grant
    Filed: June 22, 1979
    Date of Patent: March 10, 1981
    Assignee: Deutsches Krebsforschungszentrum
    Inventors: Norbert Fusenig, Wolfgang Thon