Patents by Inventor Joachim Mantke

Joachim Mantke 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).

  • Variably ventilated filter cigarette
    Patent number: 4593707
    Abstract: A variably ventilatable filter cigarette is provided with a filter body having a plurality of spaced circumferential, peripheral channels covered by a wrapping sheet at least a portion of which is air permeable, the wrapping sheet extending beyond the filter body to receive a cup-shaped member having an end wall with perforations alignable with the channels; the cup-shaped member is rotatable to vary the degree of registration with respect to the channels.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: June 10, 1986
    Assignee: H.F. & Ph.F. Reemtsma GmbH & Co.
    Inventors: Henning Seidel, Wolfgang Wildenau, Joachim Mantke