Search Images Maps Play YouTube News Gmail Drive More »
Advanced Patent Search | Web History | Sign in

Patents

Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US40276793 Aug 19767 Jun 1977Tobacco product
US414253414 May 19766 Mar 1979Reduction of toxic substances in tobacco smoke
US434785518 Sep 19817 Sep 1982Philip Morris IncorporatedMethod of making smoking articles
US43912859 May 19805 Jul 1983Philip Morris, IncorporatedSmoking article
US45275735 Nov 19829 Jul 1985Philip Morris IncorporatedFilter cigarette
US453294330 Sep 19826 Aug 1985Philip Morris IncorporatedAdjustable filter cigarette
US464994116 Dec 198517 Mar 1987R. J. Reynolds Tobacco CompanyAdjustable air dilution cigarette exhibiting controlled pressure drop
US464994414 Aug 198417 Mar 1987Philip Morris IncorporatedFilter cigarette
US46499455 Dec 198517 Mar 1987R. J. Reynolds Tobacco CompanyAdjustable air dilution cigarette exhibiting controlled pressure drop
US481966523 Jan 198711 Apr 1989R. J. Reynolds Tobacco CompanyAerosol delivery article
US48981901 Mar 19896 Feb 1990R. J. Reynolds Tabacco CompanyAdjustable air dilution cigarette with pressure drop compensation
US491316917 Mar 19893 Apr 1990Brown & Williamson Tobacco CorporationSmoking article
US49248836 Mar 198715 May 1990R. J. Reynolds Tobacco CompanySmoking article
US492488621 Nov 198815 May 1990Brown & Williamson Tobacco CorporationSmoking article
US49428879 Jun 198824 Jul 1990Fabriques de Tabac Reunies, S.A.Filter mouthpiece for a smoking article
US595406113 Oct 199821 Sep 1999Cigarette aeration and filtration device