Philip Morris v RAI: British American Tobacco patent for heated tobacco device revoked for lack of inventive step and added matter Hogarth Chambers British American Tobacco Valuation Still a powerhouse or up in smoke? British American Tobacco wants to build global vape brands VAPE HK Tobacco Giant BAT Attracts 1.4m New Vype Users Within Three Months Vaping Post Tobacco giant says 'exciting' new products bringing in millions more consumers The Independent British American Tobacco Driving innovation