Patents by Inventor Johannes G. Clardey

Johannes G. Clardey 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 and filter cigarette
    Patent number: 4291712
    Abstract: A filter to be mounted to a cigarette and provided with one or more axial channels made by means of a laser beam, as well as a cigarette provided with such a filter.
    Type: Grant
    Filed: November 9, 1978
    Date of Patent: September 29, 1981
    Assignee: Sigarettenfabriek Ed. Laurens B.V.
    Inventors: Hendrikus J. Koster, Johannes T. J. Bik, Johannes G. Clardey, Dirk Smorenberg