| Patents for A24D 3 - Tobacco smoke filters, e.g. filter-tips, filtering inserts; Mouthpieces for cigars or cigarettes (8,806) |
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| 03/08/1989 | EP0306186A1 Hinged filter sleeve |
| 03/08/1989 | CN1031472A Smoking article with improved mouthend piece |
| 03/07/1989 | US4809718 Variable air dilution cigarette filters |
| 03/07/1989 | US4809717 Ventilated cigarette |
| 03/01/1989 | EP0304766A2 Smoking article with improved wrapper |
| 03/01/1989 | EP0304759A2 Smoking article with improved mouthend piece |
| 02/28/1989 | US4807809 Rod making apparatus for smoking article manufacture |
| 02/28/1989 | US4807647 Ventilated cigarette filter |
| 02/23/1989 | WO1989001301A1 Tobacco smoking article |
| 02/15/1989 | CN1031016A Improvements relating to smoking articles |
| 02/14/1989 | US4804079 Apparatus for transporting groups of rod-shaped articles of the tobacco processing industry |
| 02/08/1989 | CN2031999U Combined filtering smoking set |
| 02/01/1989 | CN2031615U Micro filtering adsorption cigarette holder |
| 02/01/1989 | CN2031614U Safety cigarette filter-tip capable of sterilizing and fireproofing |
| 01/26/1989 | DE3817771A1 Zigarettenfilter Cigarette Filters |
| 01/17/1989 | US4798570 Process for preparing filter rods |
| 01/17/1989 | CA1248837A1 Localized liquid additive applicator system for continuous cylindrical product |
| 01/17/1989 | CA1248836A1 Cigarette filter |
| 01/03/1989 | US4795411 Apparatus for forming annular grooves or slits in rod-shaped articles |
| 12/29/1988 | DE3819653A1 Messvorrichtung fuer ausnehmungen in zigarettenfiltern Measuring device for recesses in cigarette filter |
| 12/28/1988 | CN88103264A Rod containing pelletized material |
| 12/21/1988 | EP0295835A1 Filter mouthpiece for smoking articles |
| 12/21/1988 | EP0295518A1 Rods containing pelletized material |
| 12/20/1988 | US4791943 Cigarette filter unit and method for the production thereof |
| 12/15/1988 | DE3817889A1 Verfahren zum herstellen von tabakrauchfiltern A process for the manufacture of tobacco smoke filters |
| 12/13/1988 | CA1246416A1 Filter cigarette |
| 11/30/1988 | EP0292949A2 Filter for tobacco smoking |
| 11/30/1988 | CN88102817A 吸烟制品 The smoking article |
| 11/29/1988 | CA1245532A1 Cigarette filter |
| 11/29/1988 | CA1245530A1 Mouthpiece for tobacco smoke article |
| 11/22/1988 | US4785830 Method and apparatus for monitoring and evaluating the density of a tobacco stream |
| 11/22/1988 | CA1245125A1 Ventilated cigarette |
| 11/17/1988 | EP0290911A2 Smoking article |
| 11/16/1988 | CN87103440A Method and device for controlling hydrogen cyanide and nitric oxide concentrations in cigarette smoke |
| 11/15/1988 | US4784632 Tobacco smoke filter and method and apparatus for making same |
| 10/19/1988 | CN88200134U Smoke filter of cigarette |
| 10/18/1988 | CA1243159A1 Vinylidene fluoride resin split yarn, process for production thereof and filter comprising the same |
| 10/11/1988 | US4776355 Smoking articles |
| 10/11/1988 | US4776354 Filtered smoking article |
| 10/04/1988 | US4774972 Ventilated tobacco smoke filter |
| 09/28/1988 | CN88101196A 吸烟制品 The smoking article |
| 09/28/1988 | CN87216395U Hygienic smoke set with magnetic cavity oil filter core |
| 09/13/1988 | US4770193 Manufacture of tobacco smoke filters |
| 09/07/1988 | WO1988006412A1 Ultra-high filtration filter |
| 09/07/1988 | EP0280990A2 Smoking article |
| 09/06/1988 | US4768526 Tobacco smoke filters |
| 08/30/1988 | US4766911 Method for tracing smoking articles |
| 08/17/1988 | EP0277991A1 Smoking rod wrapper and compositions for their production. |
| 08/16/1988 | US4763674 Method and device for controlling hydrogen cyanide and nitric oxide concentrations in cigarette smoke |
| 08/09/1988 | CA1240227A1 Baffled tobacco smoke filter and method of manufacture |
| 08/09/1988 | CA1240226A1 Tobacco smoke mouthpiece and method of making same |
| 07/27/1988 | EP0276021A2 An easily breakable plastic capsule and a water filter for a cigarette using the same |
| 07/27/1988 | CN87107513A Method for producing filter-tipped cigarette with medium or low tobacco tar content |
| 07/12/1988 | US4756319 Process for producing granular algal adsorbents |
| 07/12/1988 | US4756316 Method for producing a cigarette filter rod |
| 07/05/1988 | US4754766 Tobacco smoke filters |
| 06/28/1988 | US4753250 Process for producing tobacco filter to adsorb materials harmful to health, especially aldehydes in the smoke of tobacco |
| 06/21/1988 | US4752348 Cigarette filters, plasticizer |
| 06/08/1988 | EP0269915A2 Method and device for the manufacture of tobacco smoke filter rods |
| 05/31/1988 | US4747814 Fiber separator |
| 05/31/1988 | US4747418 Cigarette filter unit |
| 05/31/1988 | CA1237356A1 Variable air dilution cigarette filter |
| 05/18/1988 | CN86107690A Poison-reduction piece for cigarettes |
| 05/17/1988 | US4744932 Extruding spinning solution into aqueous bath through annulus while aspirating liquid through tube |
| 05/17/1988 | US4744374 Hydrophobic, crystalline, microporous silaceous materials of regular geometry |
| 05/05/1988 | DE3735006A1 Conveying apparatus for conveying rod-shaped articles in the tobacco processing industry |
| 04/21/1988 | DE3634105A1 Apparatus for producing filter plugs for rod-shaped articles in the tobacco processing industry |
| 04/20/1988 | EP0263975A2 Open-cell foamed gypsum absorbents |
| 04/12/1988 | CA1235037A1 Tobacco smoke filters |
| 04/05/1988 | US4735218 Tobacco filter |
| 03/30/1988 | CN87201395U Filter for cigarettes |
| 03/23/1988 | EP0260789A1 Novel filter for a smoking article |
| 03/10/1988 | WO1988001478A1 Smoking rod wrapper and compositions for their production |
| 03/08/1988 | US4729391 Porous polymer releases flavors into smoke |
| 03/08/1988 | US4729390 Cellulose acetate filaments coated with glycerides |
| 03/08/1988 | US4729389 Kaolin fibers |
| 03/01/1988 | US4727892 Ventilated cigarette |
| 02/23/1988 | US4726385 Method of fabricating an all-tobacco cigarette controlling tar delivery and an all-tobacco cigarette |
| 02/16/1988 | US4724849 Narrow-cross sectioned fibers for use in tobacco smoker filters |
| 02/16/1988 | US4724848 Smoking article filters |
| 02/09/1988 | US4724429 Diagnostic and control system for cigarette filter rod making machine |
| 02/09/1988 | US4724242 Open cell foamed gypsum absorbents |
| 02/09/1988 | US4723561 Smoking articles |
| 02/09/1988 | US4723559 Conveying rod-like articles |
| 02/03/1988 | EP0255114A1 Filter cigarette |
| 01/28/1988 | WO1988000524A1 Cooling apparatus in a filter maker |
| 01/28/1988 | WO1988000440A1 Fiber separator |
| 01/27/1988 | EP0254004A2 Aerated cigarette |
| 01/27/1988 | EP0253830A1 Cigarette making machines. |
| 01/19/1988 | CA1231610A1 Smoking articles |
| 01/13/1988 | CN87104595A Method and device for removing nitric oxide from cigarette smoke |
| 01/12/1988 | US4718438 Filter cigarette having rotatable adjustment |
| 01/12/1988 | US4718437 Smoking articles |
| 01/12/1988 | US4718436 Smoking articles |
| 01/12/1988 | US4718435 Smoking articles |
| 01/07/1988 | EP0250806A2 Method and device for removing nitric oxide from cigarette smoke |
| 01/05/1988 | US4716912 Filter cigarette having adjustable air dilution |
| 01/05/1988 | CA1231021A1 Cigarette filter |
| 12/29/1987 | US4715390 Matrix entrapment of flavorings for smoking articles |
| 12/26/1987 | CN87200364U Multistage filtered cigarette |