Patents
Sitemap › A24 - Tobacco; Cigars; Cigarettes; Smokers' requisites › A24D - Cigars; Cigarettes; Tobacco smoke filters; Mouthpieces for cigars or cigarettes; Manufacture of tobacco smoke filters or mouthpieces › A24D 3 - Tobacco smoke filters, e.g. filter-tips, filtering inserts; Mouthpieces for cigars or cigarettes
Patents for A24D 3 - Tobacco smoke filters, e.g. filter-tips, filtering inserts; Mouthpieces for cigars or cigarettes (8,806)
09/1981
09/15/1981US4289725 Material web for the manufacture of filter rods for tobacco products and apparatus and process for producing such web
09/08/1981US4287979 Method and apparatus for assembling rod-like articles
08/1981
08/25/1981US4285678 Method and apparatus for making composite filter rod
08/25/1981US4285677 Method and apparatus for the manufacture of cigarette filters containing particulate material
08/25/1981US4285650 Apparatus for producing tobacco product filter rods
08/18/1981US4283998 Method and machine for making a filter rod
08/18/1981CA1107171A1 Device for depositing a liquid binder agent on a fibrous sheet for manufacturing cigarette filters
08/11/1981US4283187 Apparatus for forming composite rods
08/11/1981US4283186 Method of forming cigarette filter material
08/11/1981US4282890 Open cell structure foamed cellulose acetate filters
08/11/1981CA1106722A2 Material web for the manufacture of filter rods for tobacco products and apparatus and process for producing such web
08/04/1981US4281671 Production of tobacco smoke filters
08/04/1981US4281591 Production of cigarette filter units
08/04/1981CA1106256A1 Tobacco-smoke filters
07/1981
07/21/1981US4279848 Process for extruding an open-cell foamed polyolefin filter
06/1981
06/25/1981WO1981001642A1 Miniature tobacco filters
06/23/1981US4274979 Manufacture of activated carbon
06/23/1981US4274914 Filter material
06/23/1981US4274428 Closely spaced corrugations
06/23/1981US4274317 Method of monitoring a continuously advancing string material
06/16/1981US4273600 Bonding fibrillated polypropylene smoke filter with ethylene-vinylacetate emulsion
06/16/1981US4273142 Smoking filters
06/16/1981US4273141 Smoke filters
06/02/1981US4270962 Process and apparatus for the preparation of bar form fibrous molding
06/02/1981US4270670 Device for the high speed feeding of rod-like articles
05/1981
05/26/1981US4269204 Chlorella in porous carrier, removes and denatures toxins
05/19/1981CA1101298A1 Material web for the manufacture of filter rods for tobacco products and apparatus and process for producing such web
05/12/1981US4267002 Withdrawing a rod having dense rigid skin with parabolic orientation of the less dense fibrous core by extruding thermoplastic resin fibers into a funnel-shaped device
05/12/1981US4266561 Tobacco smoke filtering compositions
05/12/1981CA1101147A1 Tobacco smoke filter material
05/12/1981CA1100746A1 Additive for smoking tobacco products, filter elements thereof and process for the preparation thereof
04/1981
04/29/1981EP0027740A1 A method of manufacturing fibrous rod-like articles and apparatus for performing such a method
04/21/1981CA1099502A1 Smoking articles containing thaumatin or monellin
04/14/1981US4261373 Bundles of multicomponent filaments self-adhered by heat treatment
04/07/1981US4260523 Magnetized active carbon composition
04/07/1981US4259769 Method and apparatus for banding tows of filamentary material
04/01/1981EP0025787A1 Catalytic processes and catalysts
03/1981
03/31/1981US4259130 Production of rod-shape elements
03/31/1981US4258730 Magnetized active carbon; removal of nicotine and carbon monoxide
03/24/1981US4257754 Fibrous material moulding apparatus
03/24/1981US4257344 Cellulose acetate fibers
03/18/1981EP0025327A1 Cigaret mouthpiece
03/17/1981US4256609 Physical adsorption of a group 6,7,or 8 metal compound
03/17/1981US4256122 Cigarette filter
03/03/1981US4253508 Selective filtering of tobacco smoke by enhanced filtration efficiency
03/03/1981US4253476 Tobacco filter and method of removing impurities from tobacco smoke
03/03/1981CA1096737A1 Smoke filters
02/1981
02/24/1981US4252687 Catalysts
02/17/1981US4250901 Cigarette holder
02/10/1981US4250201 Use of mixture containing caryophyllene alcohols for augmenting or enhancing the aroma or taste of foodstuffs
02/03/1981US4248139 Manufacture of filters for cigarettes
02/03/1981CA1094905A1 Filter for smoking article, mainly cigarette
01/1981
01/27/1981US4246910 Cigarette filter material comprising compounds of iron in high oxidation states
01/20/1981US4246009 Smoke filter material and use thereof
01/13/1981CA1093417A1 Production of rod-shape elements
01/13/1981CA1093416A1 Method and apparatus for perforating an assembled filter used on a smoking product
01/06/1981CA1092933A2 Cigarette filter
01/06/1981CA1092932A1 Method for producing cigarette filters and the filters obtained
01/06/1981CA1092931A1 Ventilated cigarettes
12/1980
12/30/1980US4242226 Activated carbon matrix and metals produced by pyrolysis of a polyhexose containing metal cations
12/30/1980CA1092748A1 Fibers, filter rods and other nonwoven articles made from poly(1,2-propylene terephthalate) copolyesters of terephthalic acid, 1,2-propylene glycol and ethylene glycol
12/16/1980US4238994 Method and apparatus for monitoring and controlling the production of composite filter mouthpieces for cigarettes or the like
12/09/1980US4237908 Method for manufacturing filter-tipped cigarettes
12/09/1980US4237778 Machine for making recessed composite filter mouthpieces
12/09/1980CA1091123A1 Tobacco-smoke filters
11/1980
11/11/1980US4232574 Apparatus and method for providing a cigarette filter with an aeration groove
11/04/1980US4232130 Filter elements
10/1980
10/29/1980EP0018188A1 A tobacco smoke filter plug and a method of producing the same
10/29/1980EP0017794A1 Tipping paper for an air-ventilated smoking product and method of manufacturing same
10/21/1980CA1087968A1 Preparation and method of use of compounds and compositions effective for removal, conversion and detection of carbon monoxide
10/07/1980US4226988 Skin coolants
10/07/1980US4226250 Smoking system to filter tobacco smoke
10/02/1980WO1980002023A1 Catalytic processes and catalysts
09/1980
09/23/1980US4223597 Method of the production of cigarette filters
09/09/1980US4221226 Hot melt adhesive for bonding filter tow, and filter elements bonded thereby
08/1980
08/26/1980US4219033 Tobacco-smoke filters
08/26/1980US4219030 Aeration groove filter
08/20/1980EP0014477A1 Method and apparatus for forming filter rod containing particulate material, especially charcoal impregnated filter rod
08/12/1980CA1083458A1 Moulded fibrous materials
08/06/1980EP0014105A2 Flavourant composition for tobacco, method for its production and tobacco product containing said composition
07/1980
07/29/1980US4214508 Method and apparatus for making cigarette filters of filamentary material
07/22/1980US4213470 Tobacco-smoke filters
07/15/1980US4212541 Method and apparatus for testing a forward-moving strand
06/1980
06/24/1980US4208956 Glue transfer apparatus for cigarette filters
06/10/1980CA1079151A1 Glue transfer apparatus for cigarette filters
06/10/1980CA1079150A1 Cigarette filter
06/03/1980CA1078698A1 Tobacco-smoke filters
05/1980
05/29/1980WO1980001115A1 Cigarette and cigarette filter making machines
05/28/1980EP0011510A1 Cigarette and cigarette filter making machines
05/27/1980CA1078159A1 Chitin as an extender and filter for tobacco
05/20/1980CA1077797A1 Filter for cigarettes, cigarillos or pipes
05/13/1980US4202356 Tobacco smoke filter material
05/06/1980US4201234 Filter for smoking article, mainly cigarette
05/06/1980CA1076912A1 Filter material
04/1980
04/15/1980US4197863 Tobacco smoke filter
04/01/1980US4195649 Tobacco smoke filter
04/01/1980CA1074657A1 Microperforated filter tip cigarette
03/1980
03/25/1980US4194517 Phosphoric acid esters and/or naphthalene sulfonic acids
03/18/1980US4193936 N-substituted paramenthane carboxamides
03/18/1980US4193412 Additive for smoking tobacco products, filter elements thereof and process for the preparation thereof
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