Patents Assigned to British American Tobacoo (Investments) Limited
  • Patent number: 8960198
    Abstract: A filter (11) for a smoking article (10) comprises a first flowpath (13) through the filter, a second flowpath (14) through the filter, the second flowpath being disposed around the first flowpath, and a selector (16) for allowing flow selectively through the first and second flowpaths.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: February 24, 2015
    Assignee: British American Tobacoo (Investments) Limited
    Inventors: Mark Bailey, Karl Kaljura, Paul Farenden, David Russell, Wilbert Schoenmakers, Darren Seymour, David Spendlove