US20100300467A1 - Smoking article - Google Patents

Smoking article Download PDF

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Publication number
US20100300467A1
US20100300467A1 US12/863,686 US86368609A US2010300467A1 US 20100300467 A1 US20100300467 A1 US 20100300467A1 US 86368609 A US86368609 A US 86368609A US 2010300467 A1 US2010300467 A1 US 2010300467A1
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United States
Prior art keywords
smoking article
heat
tobacco
heat chamber
article according
Prior art date
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Abandoned
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US12/863,686
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English (en)
Inventor
Kaj Kuistila
Vesa Kunnari
Eero Hurme
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STAGEMODE Oy
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STAGEMODE Oy
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Assigned to STAGEMODE OY reassignment STAGEMODE OY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HURME, EERO, KUNNARI, VESA, KUISTILA, KAJ
Publication of US20100300467A1 publication Critical patent/US20100300467A1/en
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/18—Selection of materials, other than tobacco, suitable for smoking
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00—Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/10—Devices with chemical heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/165—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00—Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/80—Manufacture

Definitions

  • the invention relates to a smoking article as defined in the preamble of claim 1 and to a method for preparing a smoking article as defined in the preamble of claims 16 and 21 .
  • Known articles used to replace cigarettes and/or to assist in giving up smoking include chewing gums, plasters, nasal sprays or lozenges with added nicotine.
  • a problem with these articles is that their use does not provide a smoking experience.
  • Smokers want to have the actual smoking experience, whereby they want e.g. to feel the taste of tobacco and smoke in their mouth.
  • Patent publication U.S. Pat. No. 7,290,549 discloses a smokeless smoking article.
  • the smoking article contains tobacco and a smokeless chemical heat source that heats and volatilizes the tobacco providing the tobacco aroma or a tobacco-aromized aerosol.
  • the heat chamber of the heat source comprises a heat cartridge which contains a chemical compound (such as magnesium and iron) capable of producing heat, and an activating solution (such as a solution of potassium chloride and nitrate) separated by a frangible partition.
  • the heat producing reaction is provided by combining the heat cartridge and the activating solution by breaking the partition.
  • a problem with the smokeless smoking article is the slow rising of the temperature to the optimum volatilization temperature region of tobacco, which is about 125 to 150° C.
  • the smoking article requires that two separate chambers be combined to start the heat producing reaction.
  • Patent publication EP 0371285 discloses a smoking article comprising tobacco, a filter element and a heat source.
  • the heat source contains material (e.g. metal oxides and anhydrous metal sulfates) which is capable of exothermic reaction when contacted with water.
  • the contact between water and the components of the heat source forms heat which warms and volatilizes the tobacco.
  • the water required in the reaction may be injected into the heat source, it may be incorporated in a separate rupturable capsule or it can be incorporated in a solid salt, a salt hydrate.
  • Patent publication U.S. Pat. No. 5,285,798 discloses a smoking article comprising tobacco, a filter element and a heat source.
  • the chemical agents of the heat source which comprise at least two metallic agents, interact electrochemically when contacted with an electrolyte solution, e.g. water. The electrochemical interaction produces heat which warms and volatilizes the tobacco.
  • a problem with the above-mentioned smoking articles is that the water which provides the exothermic reaction must be separated from the co-reacting compounds in the smoking articles. These smoking articles always require a separate water capsule, water injection or release of water from a hydrous salt to provide the exothermic heat producing reaction.
  • the objective of the invention is to disclose a new type of smokeless smoking article which is simple in structure and operation and wherein the heat source quickly reaches the temperature of the optimum volatilization region of tobacco without a separate addition or chamber of liquid/water.
  • a further objective of the smoking article of the invention is to provide a smoking experience to the smoker without combusting tobacco or other ingredients, without outside smoke and without generating any combustion products, such as carbon monoxide.
  • One specific objective of the invention is to alleviate the problems referred to above.
  • One further objective of the invention is to disclose a method for producing the smoking article.
  • the smoking article according to the invention is characterized by what has been presented in claim 1 .
  • the method for producing the smoking article according to the invention is characterized by what has been presented in claims 16 and 21 .
  • the smoking article according to the invention comprises tobacco, suction resistance and a chemical heat source in conjunction with the tobacco.
  • the chemical heat source comprises a heat chamber formed from one continuous volume and is activated by external thermal and/or oxygen excitation.
  • the chemical heat source is based on exothermic reaction.
  • the heat chamber may be closed.
  • the heat which is forming in the heat chamber reaches the preferred volatilization region of 125 to 150° C. of tobacco quickly and keeps the temperature in this region.
  • the heat volatilizes the aroma and nicotine from the tobacco.
  • the tobacco aroma and other active agents, such as nicotine, can be best released without combustion or production of smoke in the preferred volatilization region.
  • the heat chamber contains chemical compounds which are capable of producing heat.
  • the chemical compounds normally include a metal/metals and/or a strong oxygen-containing oxidizer.
  • the metal may be a transition metal, alkali metal, alkali earth and/or a metal of some other group. Examples of typical applicable metals include iron (Fe), aluminum (Al), magnesium (Mg), lithium (Li), cobalt (Co), platinum (Pt), palladium (Pd), copper (Cu), silicon (Si), preferably iron.
  • the strong oxygen-containing oxidizer may be a metal oxide, metal peroxide and/or metal oxide salt, for example potassium permanganate, manganese dioxide, lead-3-tetraoxide, barium peroxide, bromates, chlorates etc.
  • the strong oxygen-containing oxidizer is preferably potassium permanganate (KMnO 4 ) or oxygen.
  • the chemical compounds are selected so as to produce a safe reaction and so that the temperature produced by the reaction rises quickly to the maximum temperature which is not too high, and so that the heat production in the reaction lasts for a long time.
  • the chemical compounds are anhydrous.
  • the heat chamber may also contain a reaction catalyzing agent, for example carbon.
  • inert filler material in conjunction with the chemical starting compounds in the heat chamber.
  • the inert filler material may also contain typical additives, such as binder, which may for example accumulate heat.
  • the heat chamber is made from a material which holds the temperatures generated by the heat chamber reaction, and typically temperatures of about 220° C.
  • Polymer-, paper-, natural fiber-, ceramic-, glass- and/or metal-based materials which stand the temperature and pressure generated in the reaction and the compounds formed in the reaction, can be used for making the heat chamber.
  • the polymer-based materials may include polypropylene, polyethylene, other polyolefins, polyesters and/or other equivalent polymeric materials and/or mixtures thereof.
  • the paper-based material may include paper and/or coated paper and/or other material based on natural fibers.
  • the material of the heat chamber is impermeable to oxygen when oxygen is used as the oxidizer.
  • the heat chamber may be provided with a heat insulating and/or heat accumulating layer.
  • the heat chamber is preferably provided with an insulating layer when it is made from heat-conducting material, such as for example aluminum.
  • the insulating layer may be made from natural or synthetic polymeric material, such as textile, paperboard or polystyrene or from ceramic, glass- or metal-based material.
  • the heat accumulating layer enables to obtain steady and longer-lasting optimum heat.
  • the heat accumulating layer may be made for example from wax.
  • the external excitation which activates the heat source is heat and/or oxygen.
  • the heat is provided by fire for example using a match or a lighter, by electricity using for example an electrically heated resistance wire, by a detonator and/or other starting heat providing excitation.
  • the applied oxygen may normally be oxygen contained in the air contacted with the heat source for example by breaking the wall of the airtight heat chamber which is impermeable to oxygen, by removing, in a smoking article covered by a protective film/package that is impermeable to oxygen, this film/package, and/or by contacting the heat chamber which is impermeable to oxygen with air in an equivalent manner.
  • the heat source contains iron and potassium permanganate as the chemical compounds. Reaction between the staring materials is initiated by introducing starting heat to the mixture by a match, lighter, detonator and/or resistance wire. Oxygen is not required in starting the reaction.
  • Reaction rate and heat produced in the reaction can be adjusted by weight ratios of the chemical compounds.
  • the weight ratio is also selected according to thermal conductivity of the coating material in the heat chamber.
  • the weight ratio between potassium permanganate and iron ranges from 5/95 to 95/5, preferably from 25/75 to 50/50 and is more preferably 30/70.
  • the heat chamber contains iron, sodium sulfide and carbon, which are contacted with each other in the presence of oxygen or air according to the following reaction:
  • the sodium sulfide may be hydrous or anhydrous. Calcium oxide reacts with the sodium suplhide crystal water and temperature produced in the reaction raises more quickly. Material of the heat chamber is impermeable to oxygen.
  • the tobacco may include one type of tobacco and/or a mixture of tobacco, which may have been processed by the raw tobacco processing methods known in the tobacco industry.
  • the tobacco and/or the mixture thereof may include tobacco which has been processed in many different ways, such as tobacco fine cut, tobacco strands, tobacco flakes, tobacco dust, processed tobacco, extruded tobacco, reconstructed tobacco, tobacco extracts and equivalent processed forms of tobacco used in the tobacco industry.
  • tobacco extracts include for example tobacco essences, aromatic oils of tobacco, spray-dried and freeze-dried tobacco extracts and the corresponding tobacco extracts used in preparing the tobacco raw material.
  • flavoring agents such as menthol, vanillin, cocoa, licorice, cinnamic aldehyde and the like, as well as tobacco aroma modifiers and other modifiers, additives and fillers used in producing tobacco, and nicotine may be added to the tobacco.
  • the amount of nicotine included in the tobacco of the smoking article is typically 0.1 to 1.0 mg.
  • Suction resistance of the smoking article provides resistance when drawing on the cigarette, and the smoker is, in this manner, able to use the sucking rhythm to control his or her smoking rhythm.
  • Suction resistance is preferably disposed at one end of the smoking article.
  • suction resistance is a filter which prevents the tobacco from being contacted with the smoker and/or filters any harmful products which are formed during volatilization of the tobacco, such as tar.
  • the smoking article may further comprise a heat-providing element in conjunction with the heat source used to activate the heat source.
  • the heat-providing element may be a detonator whereby the heat chamber is activated for example by snapping the smoking article, or a resistance wire, for example wolfram, which heats up intensely when current is being conducted to the wire, a fuse and/or a firing tape to introduce the starting heat to the heat chamber.
  • the smoking article may further comprise a cooling part which cools down the fume drawn in and breathed by the user and formed by volatilization of the tobacco.
  • the cooling part also enables one to adjust the amount of fume deriving from the fine cut tobacco.
  • the flow section of the cooling part is equal or substantially smaller than the flow section of the smoking article. Adjusting the cross-section of the cooling part to be smaller than the cross-section of the smoking article reduces the amount of fume to be drawn in and extends the time of use of the smoking article.
  • the cooling part is preferably disposed between suction resistance and the tobacco.
  • Material of the cooling part includes any heat insulating and resistant material, preferably heat resistant plastic.
  • the heat chamber is surrounded by the tobacco in the smoking article.
  • the heat chamber may be a bar- or spiral-shaped, accordion-shaped or waved structure or one which has been folded in any other form.
  • the tobacco is surrounded by the heat chamber in the smoking article.
  • the heat chamber is tubular.
  • the smoking article may be coated with tobacco paper and/or other material which is similar to tobacco paper.
  • thermochrome pigment which changes color by the effect of heat. This makes the cigarette look like burning.
  • the smoking article may be in the form of a substantially tubular/bar-shaped object of a substantially round cross-section.
  • the cross-section may also be angular or flattened.
  • the smoking article is preferably in the form of a traditional cigarette.
  • the smoking article is produced by
  • the heat chamber may be formed as a structure which is either substantially bar-shaped, spiral, accordion-shaped, waved or folded in any other form, or as a tubular structure.
  • the layer of tobacco can be disposed to surround the heat chamber which is substantially bar-shaped, spiral, accordion-shaped, waved or folded in any other form, or inside the substantially tubular heat chamber.
  • a heat insulating and/or accumulating layer is disposed between the heat chamber and the tobacco.
  • An insulating layer may be disposed, if necessary, onto the layer of tobacco or the heat chamber before coating or in conjunction with the coating.
  • the smoking article is typically coated with tobacco paper.
  • a cooling part may be disposed at one end of the smoking article.
  • the cooling part is preferably disposed between suction resistance and the tobacco.
  • the smoking article according to the invention wherein the tobacco is surrounded by the heat chamber can also be produced by gluing/fixing the reaction starting materials, the chemical compounds, on a planar structure which is rolled to form a tubular structure.
  • a protective film, insulator and/or accumulating layer may be disposed onto the starting materials for example by lamination.
  • the tobacco is disposed inside or outside the tubular structure.
  • the planar structure may be formed by tobacco paper, an insulating layer and/or heat-accumulating layer.
  • Production of the heat source requires a substantially oxygen-free atmosphere including for example nitrogen, carbon dioxide or argon gas when oxygen is used as the external heat source excitation.
  • the production is carried out as a batch process.
  • the chemical compounds are mixed and the heat chamber seamed in an entirely closed oxygen-free space filled with nitrogen or argon gas. Airtightness should be maintained from production to the user.
  • the smoking article may be packed in an airtight individual pack.
  • the smoking article according to the invention is immediately ready to use when the smoker activates the exothermic heat chamber reaction by the starting heat or oxygen.
  • the temperature of the heat chamber quickly rises to the volatilization temperature of tobacco and volatilizes nicotine and aromas of the tobacco and/or flavoring agents added to the tobacco.
  • the smoker is able to sense the volatilized nicotine and aromas of the tobacco and have the smoking experience without smoke when drawing in tobacco through the filter.
  • the heat chamber produces heat sufficiently and quickly to volatilize the components of the tobacco while maintaining the temperature in the preferred volatilization region for minutes.
  • the smoking article and its heat chamber are simple is structure and operation.
  • the smoking article feels the same as a real smoking article, such as a cigarette or cigar, and has the same visual appearance.
  • the smoking article has good storage endurance. Reaction products of the smoking article are not toxic and can be safely disposed of with normal household waste.
  • FIG. 1 shows a smoking article according to the invention as seen from the side
  • FIG. 2 shows a second smoking article according to the invention as seen from the side
  • FIG. 3 shows a third smoking article according to the invention as seen from the side
  • FIG. 4 shows a cross-section of the smoking article according to the invention
  • FIG. 5 the effect of the chemical compounds in the heat chamber and their weight ratio on the heating rate, maximum temperature and temperature changes in time.
  • FIG. 6 shows a fourth smoking article according to the invention as seen from the side
  • FIG. 7 shows a fifth smoking article according to the invention as seen from the side
  • FIG. 8 shows a sixth smoking article according to the invention as seen from the side.
  • the smoking article ( 1 ) according to FIG. 1 is formed as a cigarette.
  • the smoking article comprises a substantially bar-shaped heat source ( 2 ), which is a closed heat chamber surrounded by a layer of tobacco ( 3 ). At one end of the smoking article there is suction resistance ( 4 ) which is normally a filter.
  • the heat source ( 2 ) contains chemical compounds which provide an exothermic reaction, preferably an oxidizable metal Fe and a strong oxygen-containing oxidizer KMnO 4 .
  • the compounds of the heat chamber may be present in an inert filler.
  • the smoking article ( 2 ) has been coated with tobacco paper ( 7 ).
  • tobacco ( 3 ) is surrounded by the bar-shaped closed heat source ( 2 ).
  • the smoking article is similar to that described above.
  • a heat accumulating layer ( 5 ) has been disposed between the heat source ( 2 ) and the layer of tobacco ( 3 ), releasing heat more steadily and maintaining the temperature for a longer period of time in the desired volatilization region of tobacco.
  • the heat accumulating layer ( 5 ) is a layer that contains for example metal, such as aluminum.
  • the layer of tobacco ( 3 ) has been coated with a heat insulating layer ( 6 ), for example a polystyrene-based material, which has low ability of conducting heat, so that the cigarette would not feel too hot in the hand.
  • heat accumulating layer ( 5 ) there may be disposed, in the position of the layer or in conjunction with the layer, a heat insulating layer, if the material of the heat chamber is heat conductive and/or the reaction of the heat chamber produces heat which exceeds the volatilization temperature of tobacco.
  • the heat source ( 2 ) may be disposed in the position of the tobacco ( 3 ) and the tobacco ( 3 ) in the position of the heat source ( 2 ).
  • the tobacco is surrounded by the heat source and the heat accumulating layer ( 5 ) is disposed between them.
  • the heat source is coated by a heat insulating layer ( 6 ).
  • the bar-shaped heat source ( 2 ) has been bent to a spiral form and the heat source is surrounded by the tobacco ( 3 ).
  • a longer heat chamber keeps the temperature longer in the desired volatilization region.
  • the bar-shaped heat source ( 2 ) has been folded in accordion form and the heat source is surrounded by the tobacco ( 3 ).
  • a cooling part ( 8 ) Disposed between suction resistance ( 4 ) at one end of the smoking article and the part which forms the tobacco ( 3 ) and the heat chamber ( 2 ) there is a cooling part ( 8 ) which is smaller in cross-section than the smoking article and cools down the fume that passes through it volatilizing from the tobacco, reducing the amount of fume drawn in and thereby extending the time of use of the smoking article.
  • the cooling part ( 8 ) is normally made from heat resistant plastic.
  • the section ( 9 ) which surrounds the cooling part ( 8 ) normally contains air.
  • the cross-section of the cooling part ( 8 ) may also be equal to that of the smoking article, in which case the cooling part merely cools down the fume that volatilizes from the tobacco to be suitable for the user.
  • the heat chamber ( 3 ) has been formed by combining three bar-shaped heat chambers. A longer heat chamber provides longer time of use.
  • the effect of the chemical compounds, starting materials, of the heat chamber on the exothermic reaction was tested in the experiments. Weight ratios of different starting materials were used in the tests to establish their effect on the heating rate, maximum temperature and temperature changes in the course of time.
  • the heating tests were conducted with the reaction of potassium permanganate and iron in weight ratios of 30/70 and 70/30. A starting material mixture of 1.0 g was used in the tests.
  • the reactions were conducted by positioning the starting materials in aluminum or glass tubes, whereupon the reaction was actuated by an electric fuse. The temperature was followed by a thermoelement attached to the tube.
  • the internal and external diameter and wall thickness of the aluminum and glass tubes were: Al 4.75 mm, 4.05 mm and 0.35 mm: glass 5.06 mm, 3.06 mm and 1 mm.
  • the tube length was 55 mm, which is suitable for a rolling machine with filter.
  • the weight ratio of 30/70% KmnO 4 /Fe was compared in the glass tube, aluminum tube and insulated glass tube. According to the results, the glass tube kept the heat longer than the aluminum tube and the maximum temperature rose about 50° C. higher.
  • Insulating the glass tube with an aluminum foil covered by a thin fabric delayed the time of reaching the maximum temperature for a few dozen seconds. Reaching the volatilization region was delayed by about 10s, but the temperature was maintained above this region 2.5 times longer than with the non-insulated tube, i.e. for about 2 minutes.
  • the functionality of the smokeless smoking article was tested in the experiment.
  • Insulated glass tube was used as the heat chamber structure.
  • the structure was similar to that of Example 1.
  • the thickness of the insulating layer formed by the aluminum foil and the fabric was 0.56 mm.
  • the smoking article was produced by placing the heat chamber into a rolling machine with tobacco paper, filter and tobacco fine cut and by rolling the smoking article.
  • Reaction starting heat was introduced to the smoking article by a resistance wire which was heated by conducting electric current to the wire.
  • the smoking article was examined visually and it was observed that tar had been separated from the tobacco onto the paper surface. From the filter it was visible that the heat chamber reaction had separated ingredients from the fine cut tobacco. There was no observed burning or blackening of the fine cut tobacco in the cigarette when opened after the test.
  • the test comprised analyzing the volatile elements of the smokeless smoking article according to the invention, a normal cigarette and a commercial smokeless smoking article: nicotine, carbon monoxide (CO) and tar.
  • the smoking article according to Example 2 was used as the smokeless smoking article and Philip Morris “Gold” Marlboro as the normal cigarette.
  • a smoking article according to Woodleaf Corporation brand A ⁇ ros was used as the commercial smokeless reference smoking article, which is based on a plastic tube that has been seamed at both ends and contains a matrix including nicotine and tobacco aroma. The smoker cuts off the ends of the plastic tube, and nicotine and tobacco aroma are released into the mouth and organs of the smoker when drawing in air through the tube.
  • Nicotine and tar components were determined by a GC-MS-apparatus and carbon dioxide by a GC-TDCapparatus. Two parallel assays were conducted for the cigarettes.
  • the results of the smoking article according to the invention (SAI) have been scaled to the amount of fine cut tobacco in a normal cigarette.
  • the results have been assembled in Table 1.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)
US12/863,686 2008-01-22 2009-01-21 Smoking article Abandoned US20100300467A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20085052 2008-01-22
FI20085052A FI121361B (fi) 2008-01-22 2008-01-22 Tupakkatuote ja menetelmä sen valmistamiseksi
PCT/FI2009/050056 WO2009092862A1 (en) 2008-01-22 2009-01-21 Smoking article

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US20100300467A1 true US20100300467A1 (en) 2010-12-02

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US12/863,686 Abandoned US20100300467A1 (en) 2008-01-22 2009-01-21 Smoking article

Country Status (18)

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US (1) US20100300467A1 (fi)
EP (1) EP2249669A4 (fi)
JP (2) JP2011509667A (fi)
KR (1) KR20100113591A (fi)
CN (1) CN101925309A (fi)
AU (1) AU2009207566B2 (fi)
BR (1) BRPI0905694A2 (fi)
CA (1) CA2712710C (fi)
EA (1) EA018280B1 (fi)
EG (1) EG27170A (fi)
FI (1) FI121361B (fi)
MA (1) MA32048B1 (fi)
MX (1) MX336003B (fi)
MY (1) MY155360A (fi)
NZ (1) NZ587496A (fi)
UA (1) UA101642C2 (fi)
WO (1) WO2009092862A1 (fi)
ZA (1) ZA201005918B (fi)

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US20140196735A1 (en) * 2013-01-15 2014-07-17 Qiuming Liu Electronic cigarette
US8881737B2 (en) 2012-09-04 2014-11-11 R.J. Reynolds Tobacco Company Electronic smoking article comprising one or more microheaters
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US9833019B2 (en) 2014-02-13 2017-12-05 Rai Strategic Holdings, Inc. Method for assembling a cartridge for a smoking article
US9839237B2 (en) 2013-11-22 2017-12-12 Rai Strategic Holdings, Inc. Reservoir housing for an electronic smoking article
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US9877510B2 (en) 2014-04-04 2018-01-30 Rai Strategic Holdings, Inc. Sensor for an aerosol delivery device
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AU2009207566B2 (en) 2014-05-22
CN101925309A (zh) 2010-12-22
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MA32048B1 (fr) 2011-02-01
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WO2009092862A1 (en) 2009-07-30
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FI20085052A (fi) 2009-07-23
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