A24F 1/20

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
8752556 Smoking article filterJan 23, 07Jun 17, 14BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
8746254 Composite materials and their use in smoking articlesFeb 12, 13Jun 10, 14Philip Morris USA Inc.
8402977 Tobacco smoke filterNov 26, 03Mar 26, 13FILTRONA INTERNATIONAL LIMITED
8381738 Composite materials and their use in smoking articlesDec 22, 03Feb 26, 13Philip Morris USA Inc.
8119555 Carbonaceous material having modified pore structureNov 20, 08Feb 21, 12R.J. REYNOLDS TOBACCO COMPANY
7980250 Smokers filterOct 13, 03Jul 19, 11FILTRONA INTERNATIONAL LIMITED
7484511 Cigarette and filter with downstream flavor additionMar 16, 04Feb 03, 09Philip Morris USA Inc.
6591839 Filter material for reducing harmful substances in tobacco smokeMar 28, 01Jul 15, 03Not available
6345625 Filter for secondary smoke and smoking articles incorporating the sameNov 18, 98Feb 12, 02Not available
6113964 Removal of undesirable components from a liquid or gas with proteinaceous oat materialMar 16, 98Sep 05, 00GTC OATS, INC.
6067993 Filter adapter for use with smoking apparatusDec 02, 98May 30, 00CHASE MANHATTAN BANK USA, NATIONAL ASSOCIATION