| Patents for A24F 7 - Mouthpieces for pipes; Mouthpieces for cigar or cigarette holders (475) |
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| 02/16/2000 | CN2363492Y Cigarette holder capable of stopping smoking |
| 12/01/1999 | CN2350991Y Water filtering cigarette filter holder |
| 09/01/1999 | CN1227081A Medicinal and magnetic detoxifier for cigarette and its detoxifying core |
| 08/18/1999 | CN2333208Y Less harmful smoking requisite |
| 07/07/1999 | CN2327202Y Magnetized filtering cigarette tip |
| 06/09/1999 | CN2322414Y Mouthpiece for stopping smoking |
| 02/18/1999 | DE19732579A1 Filter tip for cigarettes, cigars or pipes |
| 12/16/1998 | CN2300269Y Tabacco tar separation cigarette mouthpiece |
| 10/13/1998 | US5819752 Anatomically correct mouthpiece |
| 05/27/1998 | CN1182557A Medical sanitary tobacco pipe |
| 05/07/1998 | DE19645563A1 Holder for cigarette articles |
| 05/06/1998 | CN2280427Y Cover-type cigarette holder |
| 04/23/1998 | DE19642663A1 Filter for removing tar from tobacco smoke |
| 07/16/1997 | CN2257649Y Hygienic cigarette holder |
| 07/16/1997 | CN2257648Y Portable hygienic cigarette holder |
| 04/09/1997 | CN2251263Y Tobacco pipe with smoke filter |
| 01/15/1997 | CN2244815Y Health-care cigarette holder |
| 01/01/1997 | CN2243787Y Magnet filter anti-cancer cigarette holder |
| 12/04/1996 | CN2241444Y Cigarette mouthpiece with filter |
| 04/10/1996 | CN2223902Y Health-care filter tip of cigarette |
| 02/21/1996 | CN2220168Y Filter tobacco pipe |
| 01/31/1996 | CN2218460Y Filter cigarette holder |
| 01/24/1996 | CN2217892Y Dual tar filtering cigarette tip |
| 11/29/1995 | CN2213446Y Safety smoking apparatus |
| 01/18/1995 | CN2187374Y Closed cigarette holder |
| 04/21/1994 | DE4313847C1 Smoke filter for pipes, cigars and cigarettes - has closure plug for paper casing filled with granular material comprising body with circular cylindrical and blunt conical sections |
| 07/12/1990 | DE3900266A1 Toxin remover, particularly for smokers |
| 04/24/1990 | CA1268096A1 Mouth-piece for filtering the smoke of cigarettes and the like |
| 11/09/1989 | DE3913016A1 Condensate-absorbing insert for tobacco smoking appliances |
| 08/16/1989 | EP0327655A1 Smoke filter, particularly for tobacco pipes |
| 06/27/1989 | US4841994 Mouth-piece for filtering the smoke of cigarettes and the like |
| 06/15/1989 | DE3741408A1 Filter for arranging in a cigarette tip, especially for the smoking of cigarettes freed of nicotine and harmful constituents |
| 10/06/1988 | DE3807971A1 Filter and apparatus for the production of such a filter |
| 07/27/1988 | CN87208918U Health protecting cigarette holder |
| 07/27/1988 | CN87205112U Cigarette filter for smoking giving up purpose |
| 05/11/1988 | CN87204081U Safty cigarette holder |
| 04/27/1988 | CN87204610U Pen type pipe |
| 03/16/1988 | CN86105981A Safe smoking device |
| 02/17/1988 | CN87210126U Built-up type cigarette purifying holder |
| 12/08/1987 | US4711254 Cigar holder |
| 09/09/1987 | EP0235736A1 Improved mouth-piece for filtering the smoke of cigarettes and the like |
| 07/16/1987 | DE3600805A1 Mouthpiece for tobacco pipes or the like |
| 07/07/1987 | US4677992 Smoking apparatus having convoluted filtering/heat-reduction passageway |
| 03/18/1987 | CN86203578U Water filter cigarette holder |
| 03/18/1987 | CN86203433U Safety and hygienical cigarette holder |
| 01/14/1987 | CN85202022U Spiral filter cigarette holder |
| 12/30/1986 | EP0205484A1 Filter for smokers' requisites |
| 08/06/1986 | CN85204101U Smoke-filtering unit for cigarette |
| 06/19/1986 | WO1986003381A1 Filter for smokers' requisites |
| 10/29/1985 | US4549558 Smoking appliance |
| 08/06/1985 | US4532942 Miniature tobacco filters |
| 07/17/1985 | EP0040252B1 Device for purifying tobacco smoke |
| 06/11/1985 | CA1188591A1 Tobacco smoke filters |
| 03/20/1985 | EP0041998B1 Miniature tobacco filters |
| 08/21/1984 | US4466451 Method for aromatizing tobacco smoke |
| 07/24/1984 | US4461308 Tobacco smoke filters |
| 05/29/1984 | CA1168125A1 Cigarette protector |
| 01/05/1983 | EP0069056A1 Process to aromatise tabacco smoke, cigarette end piece to carry out the process, and use of the process |
| 12/23/1982 | WO1982004381A1 Tobacco smoke filters |
| 12/22/1981 | US4306576 Cigarette filter |
| 11/25/1981 | EP0040252A1 Device for purifying tobacco smoke |
| 10/06/1981 | US4292983 Filter cartridge assembly |
| 06/25/1981 | WO1981001642A1 Miniature tobacco filters |
| 06/16/1981 | US4273142 Smoking filters |
| 05/28/1981 | WO1981001356A1 Device for purifying tobacco smoke |
| 03/03/1981 | US4253476 Tobacco filter and method of removing impurities from tobacco smoke |
| 06/25/1980 | EP0012163A2 Cigarette holder, cigar holder or mouthpiece for a pipe for breaking the habit of smoking |
| 05/06/1980 | US4201232 Cigarette holder with filter |
| 02/06/1979 | US4138722 Electronic aid for inhibiting smoking |
| 11/14/1978 | CA1042304A1 Air vent particle filter cap |
| 10/17/1978 | US4120310 Filter for cigarettes, cigars and the like |
| 01/31/1978 | US4071036 Holder for elongate tobacco product |
| 09/06/1977 | US4046153 Cigarette holder |
| 05/31/1977 | US4026019 Flexible shock absorbing pipe |
| 12/21/1976 | US3998232 Filtering tobacco smoke |