Patents by Inventor Christopher G. Drewett

Christopher G. Drewett 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).

  • Smoking articles
    Patent number: 5172708
    Abstract: There is disclosed a wrapper for a smoking article, the wrapper comprising a single paper sheet. The sheet is formed from at least two webs. The webs are combined whilst at least one web is still in its wet stage of production prior to drying. Different stocks can be used to make the webs so as to impart different qualities.
    Type: Grant
    Filed: February 26, 1992
    Date of Patent: December 22, 1992
    Inventors: Christopher G. Drewett, Brian C. Chard, David Herron, Colin D. Luton
  • Smoking articles
    Patent number: 5105835
    Abstract: There is provided a smoking article having a mouthpiece 9 and a rod of smoking material 12 wrapped in a wrapper 14. A rod 15 constructed of for example activated carbon is provided within the smoking material 12. Between puffs the smoking material extinguishes leaving the rod 15 smouldering. During each puff the smoking material is reignited by the rod 15.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: April 21, 1992
    Assignee: Imperial Tobacco, Ltd.
    Inventors: Christopher G. Drewett, David W. Bassett, Colin A. Hill