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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Application No. | Application Title | Issue Date |
| 20080135058 | Tobacco smoke filter and method for removal of aldehydes from tobacco smoke Disclosed are filter materials which are effective for the selective removal of gaseous aldehydes from a cigarette smoke stream. The filter materials comprise a tobacco smoke filter comprising a filter support material and an alkyl acetoacetate that is capable of reacti... | 06/12/2008 |
| 20080087290 | Cigarette Filter Material and Cigarette Filter A cigarette filter material useful for selectively and efficiently reducing formaldehyde while maintaining a palatable component such as nicotine or tar is provided. A cigarette filter material is obtained by adhesively treating a substrate (such as a cellulose acetate ... | 04/17/2008 |
| 20080053467 | Cigarette Filter Material and Cigarette Filter The present invention provides a cigarette filter material useful for selectively and efficiently reducing formaldehyde while maintaining a palatable component such as nicotine or tar. The cigarette filter material is obtained by coating-treating a substrate (such as a ... | 03/06/2008 |
| 20080011311 | Nicotine-Reducing Agent And Nicotine Reducing Method The present invention provides a nicotine-reducing agent and a nicotine-reducing smoking article that are used for reducing the nicotine content of the mainstream smoke of a tobacco product. The present invention also provides a method for reducing the nicotine content ... | 01/17/2008 |
| 20070295345 | Selective Filtration of Cigarette Smoke using Chitosan Derivatives A smoking article filter having a porous resin with a high surface area to mass ratio comprised of a chitosan derivative. Preferred embodiments include chitosan cross-linked with glutaraldehyde and chitosan cross-linked with glyoxal. The chitosan derivative provides for... | 12/27/2007 |
| 20070131235 | Method and apparatus for making filter element, including multi-characteristic filter element Method and apparatus are provided for making a filter element by spinning fibers from one or more dies onto a collector, including designated combinations providing designated filter characteristics. ... | 06/14/2007 |
| 20070056600 | Filtered smoking article A filtered cigarette possesses a filter element incorporating activated carbon particles. A preferred filter element incorporates a filter material such as cellulose acetate tow, and that tow is plasticized using triacetin. A mixture of propylene glycol and triacetin is... | 03/15/2007 |
| 20060225752 | Improved Cigarette Filters Comprising Compound Fibers An improved cigarette filter material/method is provided, especially a compound fiber filter. Cylindrical, with paper tube, filled with tow of interconnected compound fibers in parallel with the cylindrical axis. Said compound fiber comprises a fiber core with a surface... | 10/12/2006 |
| 20060219253 | Relating to smoking article filters The invention describes a filter (1) with a first filter portion (6) comprising an adsorbent, for example carbon, and/or a catalyst, capable of reducing various vapour phase constituents of cigarette smoke. The adsorbent/catalyst is separated from a second... | 10/05/2006 |
| 20060213533 | Use of polyphenol compounds or derivatives thereof as free-radical scavengers in cigarette filters This invention provides for the use of polyphenol compounds or their derivatives, obtainable by chemical process, biotechnical processes or from plant extracts such as rosemary, as scavengers of free radicals in cigarette filter. ... | 09/28/2006 |
| 20060157075 | Perforated capsule filter The present invention is a capsule that has a perforated outer shell that is substantially filled with a filtering media which has been pressurized to remove air pockets resulting in more effective and consistent filtration. The media may be activated carbon or other fi... | 07/20/2006 |
| 20060137700 | Triacetin resistant hot melt adhesive Hot melt adhesives comprising a polar tackifier are triacetin resistant and particularly advantageous for use as a plug wrap sealing adhesive. Particularly preferred for use in the practice of the invention are hot melt adhesives comprising a rosin ester tackifier. ... | 06/29/2006 |
| 20060124145 | Filter element The aim of the invention is to obtain filter tows or filtering materials for manufacturing filters for smoking products which make it possible to prevent or at least reduce health risks due to the release of the filter components and external contamination of cigarettes... | 06/15/2006 |
| 20050257798 | Filter capable of trapping carcinogens and toxic chemicals and manufacturing method thereof A filter has a urethane-based main chain having a repeat unit of the formula, | 11/24/2005 |
| 20050247323 | Selective filtration of cigarette smoke using chitosan derivatives A smoking article filter having a porous resin with a high surface area to mass ratio comprised of a chitosan derivative. Preferred embodiments include chitosan cross-linked with glutaraldehyde and chitosan cross-linked with glyoxal. The chitosan derivative provides for... | 11/10/2005 |
| 20050166933 | Tobacco smoke filter A tobacco smoke filter comprising a copper-containing porphyrin or an iron analog of C.I. Reactive Blue 21 dye. A method of making a first tobacco smoke filter segment, comprising the steps of providing one or more than one substance; producing a mixture of cellulose fi... | 08/04/2005 |
| 20050161054 | Cigarette filter A cigarette filter has a filter medium containing an inorganic basic substance such as sodium carbonate and a moisturizing agent selected from the group consisting of glycerin, sodium propionate and sodium lactate. ... | 07/28/2005 |
| 20050133047 | Smoking articles and filters with carbon-coated molecular sieve sorbent Smoking articles and filters, which involve the use of carbon-coated molecular sieve sorbents are provided. The carbon-coated molecular sieve sorbent has a carbon coating within pores of a mesoporous molecular sieve. The carbon-coated molecular sieve sorbent provides se... | 06/23/2005 |
| 20050133050 | Thiol-functionalized sorbent for smoking articles and filters for the removal of heavy metals from mainstream smoke Smoking articles which use thiol-functionalized sorbents are provided. The thiol-functionalized sorbents comprise at least one thioalkylsilyl compound covalently bound to an inorganic molecular sieve substrate, where the thiol-functionalized sorbent is capable of removi... | 06/23/2005 |
| 20050016555 | Nucleic acid based filters The present invention provides a filter for removing carcinogens from a gas or liquid. The filter contains nucleic acids, for example DNA or apurinic acid, with which the carcinogens may react. In specific embodiments the filters are used for tobacco smoke or industrial... | 01/27/2005 |
