Patents by Inventor Heiner Ritter

Heiner Ritter 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).

  • Ultralight coaxial cigarette including a multipart filter
    Patent number: 6089238
    Abstract: The invention relates to a coaxial cigarette including a coaxial tobacco rod comprising a rod core, a rod core wrapping, a rod jacket and a rod jacket wrapping and a multi-part ventilated filter wherein the filter comprises a filter wrapping as well as at least two longitudinal segments of which at least one is a coaxial filter segment having a core element, a core element wrapping and a jacket element and wherein the ratio of the resistance to draw of the rod core to the resistance to draw of the rod jacket is greater than unity and preferably in the range of 2 to 4.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: July 18, 2000
    Assignee: Brown & Williamson Tobacco Corporation
    Inventors: Werner Schneider, Adolf Schluter, Erwin Kausch, Volker Heemann, Ursula Kopke, Wolfgang Metzner, Bernd-Henrik Muller, Heiner Ritter