| Patents for A24D 3 - Tobacco smoke filters, e.g. filter-tips, filtering inserts; Mouthpieces for cigars or cigarettes (8,806) |
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| 03/30/1994 | CN1084387A Coolant compositions |
| 03/17/1994 | WO1994005677A1 Phosphono substituted tetrazole derivatives |
| 03/17/1994 | CA2142348A1 Phosphono substituted tetrazole derivatives |
| 03/02/1994 | EP0584957A1 Cigarette |
| 02/26/1994 | CA2104417A1 Enhancing the perceived strength of tobacco smoke |
| 02/23/1994 | CN2156689Y Fire-proof cigarette mouthpiece with strong tobacco tar filtering function |
| 02/16/1994 | CN2155680Y Nicotine filtering cigartte holder |
| 02/16/1994 | CN2155679Y Absorbing substance for tobacco tar |
| 02/16/1994 | CN2155678Y Screen drawer hot air drying and solidifying device for cigarette filter stick |
| 02/15/1994 | US5285978 Device for changing web rolls automatically |
| 02/01/1994 | US5282779 Air jet for producing filter plug for cigarette |
| 01/26/1994 | CN1081082A Amendment adapted for production of polypropylene fibre cigarette filter-tip |
| 01/19/1994 | EP0579410A1 Improvements relating to smoking articles |
| 01/19/1994 | CN2153235Y Three-dimensional compound filter tip of cigarette |
| 01/19/1994 | CN1080965A Environmentally non-persistant cellulose ester fibers |
| 01/12/1994 | CN1080498A Cigarette tar reducing filter material and producing process |
| 01/06/1994 | WO1994000138A1 Airborne protectants against oxidative tissue damage |
| 01/06/1994 | CA2147348A1 Airborne protectants against oxidative tissue damage |
| 01/04/1994 | US5275859 Tobacco smoke filter |
| 12/29/1993 | CN2150730Y Filter tip shaping machine |
| 12/21/1993 | US5271419 Cigarette |
| 12/15/1993 | CN1023058C Cigarette smoke filter tip and its making method |
| 12/14/1993 | US5269329 Method of producing tobacco flavored cigarette filter |
| 12/09/1993 | WO1993024685A1 Environmentally non-persistant cellulose ester fibers |
| 12/09/1993 | CA2135798A1 Environmentally non-persistant cellulose ester fibers |
| 12/08/1993 | EP0573279A1 Method of and apparatus for injecting a fluid into filter tow |
| 12/07/1993 | CA1324940C Method and apparatus for producing tobacco-smoke-filter rods |
| 11/30/1993 | US5265626 Coaxial filter cigarette |
| 11/25/1993 | WO1993023005A1 Coolant compositions |
| 11/24/1993 | CN2146865Y Toxin filting cigarette |
| 11/17/1993 | CN2146129Y Movable filter tip of cigarettes |
| 11/16/1993 | CA1324428C Diagnostic and control system for cigarette filter rod making machine |
| 11/10/1993 | CN1078122A Health-care cigarette holder and the prodn. method |
| 11/10/1993 | CN1078121A Filtering element and its fabrication method |
| 11/09/1993 | CA1324054C Method and device for independently adjusting filter rod density and resistance to draw |
| 11/03/1993 | EP0568278A1 High speed free-flowing material inserter |
| 11/03/1993 | EP0568107A2 Method and apparatus for forming a rod for use in the manufacture of smoking articles |
| 11/03/1993 | CN2144928Y Nonpoisonous fiter lip of cigarette |
| 11/03/1993 | CN1077869A Multi-taste cigarette holder |
| 11/02/1993 | US5258340 Multiple layers of cobalt oxide and another metal oxide for low temperature oxidation of carbon dioxide; for use in smoking articles |
| 10/20/1993 | CN1022457C Nonwoven fibrous web for tobacco filter |
| 10/13/1993 | CN2143408Y High efficient detoxicating filter for cigarette |
| 10/13/1993 | CN1077097A Air nozzle used in production of filter tip of cigarette |
| 09/30/1993 | DE4308093A1 Method for making smoking article filter |
| 09/30/1993 | DE4209789A1 Preparation of filter tow material for prodn. of cigarettes - removing material from storage and preparing by flattening, stretching and treating with auxiliary material esp. softener and sending for further processing |
| 09/30/1993 | DE4209606A1 Verfahren und Vorrichtung zum Behandeln mindestens einer Bahn von Fäden aufweisenden Filtermaterial für Zigarettenfilter Method and apparatus for treating at least one web of yarns having filter material for cigarette filters |
| 09/21/1993 | US5246017 Cigarette and cigarette filter element therefor |
| 09/16/1993 | DE4206510A1 Cigarette-paper sleeve with filter tip - has outer cylindrical filter in which coaxial filter core slides axially and protrudes towards the middle |
| 09/15/1993 | CN1022084C Apparatus for manufacturing cigarette filter tip |
| 09/01/1993 | EP0558166A2 Ventilated cigarette filter |
| 08/31/1993 | US5240015 Wetted impact barrier for the reduction of tar and nicotine in cigarette smoke |
| 08/31/1993 | US5240014 Catalytic conversion of carbon monoxide from carbonaceous heat sources |
| 08/26/1993 | CA2090090A1 Ventilated filter cigarette |
| 08/18/1993 | CN1021791C Smoking article with improved wrapper |
| 08/10/1993 | US5234397 Method of and apparatus for making composite filter rod sections for use in filter tipping machines |
| 08/04/1993 | EP0554100A1 Continuous belt |
| 08/04/1993 | CN2139364Y Mouthpiece with tobacco smoke filter |
| 07/28/1993 | EP0552234A1 A combination for improved delivery of tobacco modifying agents. |
| 07/28/1993 | CN1074593A Preparing process for strong absorption sepiolite compound material of cigarette filter tip |
| 07/21/1993 | CN2138401Y Health cigarette filter |
| 07/21/1993 | CN1074390A Geometrical object sintered with Chinese medicine stone and preparing process thereof |
| 07/06/1993 | US5225277 Acetate tow having high crimp modulus and manufacturing method thereof |
| 06/30/1993 | CN2137085Y Improved mechanism of forming machine for prodn. of filter tip |
| 06/22/1993 | US5221247 High speed vacuum assisted free flowing material inserter in filter rod manfacture |
| 06/16/1993 | EP0546519A2 Air jet for producing filter plug for cigarette |
| 06/16/1993 | CN2135926Y Health filter-tip of cigarette |
| 06/15/1993 | CA1319074C Nonwoven fibrous web for tobacco filter |
| 06/09/1993 | CN2135251Y Double-layer filt-tip cigarette |
| 06/09/1993 | CN2135250Y Cigaratte filt-tip |
| 06/09/1993 | CN1072837A Absorbent for removing nitrogen oxide from tobacco smoke |
| 06/09/1993 | CN1072836A Glycerin toxin preparation for smoking-quit |
| 06/02/1993 | CN1072580A Cigarette filters |
| 06/02/1993 | CN1072579A Disposable micro-multistage liquid containing filter tip for cigarette |
| 06/02/1993 | CN1072578A Novel cigarette system |
| 06/02/1993 | CN1072577A Multiple-smoking cigarette system |
| 05/19/1993 | CN2133151Y Cold cigarette filter with reducing nicotine |
| 05/13/1993 | WO1993008708A1 Novel multiple-smoking cigarette system |
| 05/13/1993 | WO1993008707A1 Balanced flow tobacco smoke filter |
| 05/13/1993 | WO1993008706A1 Novel cigarette system |
| 05/13/1993 | CA2121837A1 Balanced flow tobacco smoke filter |
| 05/12/1993 | CN2132392Y Compound active carbon fibre filter tip for cigarette |
| 05/11/1993 | US5209127 Device for receiving and transferring cylindrical filter rods from a mass flow of filter rods being conveyed |
| 05/05/1993 | EP0540362A1 Novel cigarette system |
| 05/05/1993 | EP0540361A1 Novel multiple-smoking cigarette system |
| 05/05/1993 | EP0539986A1 Apparatus for drawing out a web end from a web roll |
| 05/05/1993 | EP0539983A1 Device for changing web rolls automatically |
| 05/05/1993 | CN2131311Y Hollow tube filter cigarette |
| 05/05/1993 | CN1071560A Modified polypropylene filtertip of cigarette |
| 05/05/1993 | CN1020401C High efficiency archen nicotine, tobacco tar filter tip |
| 04/29/1993 | WO1993007771A1 Cigarette filter |
| 04/28/1993 | EP0539191A1 Lightweight cigarette filter and cigarettes incorporating such filters |
| 04/28/1993 | EP0539009A2 Filter tip cigarette |
| 04/28/1993 | CN1071322A Tobacco smoke filter |
| 04/27/1993 | US5206204 Absorbent for lower aldehydes |
| 04/24/1993 | CA2078620A1 Filter tip cigarettes |
| 04/21/1993 | CN1020329C Anti-cancer poison-filterning cigarette |
| 04/20/1993 | US5203757 Method and apparatus for producing tobacco smoke filter rods |
| 04/15/1993 | CA2080301A1 Tobacco smoke filter |
| 04/14/1993 | EP0536407A1 Vented filter cigarette |
| 04/13/1993 | US5201328 Method and apparatus for the production of coaxial tobacco or filter rods and coaxial tobacco or filter rod made by said method |