WO2022133979A1 - 一种贫氧加热式烟具 - Google Patents
一种贫氧加热式烟具 Download PDFInfo
- Publication number
- WO2022133979A1 WO2022133979A1 PCT/CN2020/139288 CN2020139288W WO2022133979A1 WO 2022133979 A1 WO2022133979 A1 WO 2022133979A1 CN 2020139288 W CN2020139288 W CN 2020139288W WO 2022133979 A1 WO2022133979 A1 WO 2022133979A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating
- cigarette
- section
- oxygen
- depleted
- Prior art date
Links
- 239000001301 oxygen Substances 0.000 title claims abstract description 58
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 58
- 230000000391 smoking effect Effects 0.000 title claims abstract description 46
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 87
- 238000010438 heat treatment Methods 0.000 claims abstract description 83
- 241000208125 Nicotiana Species 0.000 claims abstract description 60
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 60
- 239000000779 smoke Substances 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000000605 extraction Methods 0.000 claims description 51
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 50
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 48
- 239000003546 flue gas Substances 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 235000019505 tobacco product Nutrition 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/48—Fluid transfer means, e.g. pumps
- A24F40/485—Valves; Apertures
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- 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
- A24D1/20—Cigarettes specially adapted for simulated smoking devices
-
- 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
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/17—Filters specially adapted for simulated smoking devices
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/20—Devices using solid inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/48—Fluid transfer means, e.g. pumps
Definitions
- the invention belongs to the field of heat-not-burn cigarettes, and particularly relates to an oxygen-depleted heating cigarette assembly.
- HNB cigarettes use air as the carrier of the smoke.
- the applied heating temperature is usually low, generally not exceeding 300 °C.
- the new HNB is The tobacco aroma components of cigarettes are difficult to be completely released, and the amount of smoke is insufficient, so these cigarettes are difficult to be accepted by traditional smokers.
- most of the tobacco ends of HNB cigarettes are of an open structure, that is, the cut tobacco or reconstituted tobacco pieces are directly exposed, or connected to the outside atmosphere through a certain airflow channel. During the process of ejecting the pod, the tobacco residue will fall off, which is easy to cause pollution to the smoking set. Therefore, it takes time to clean the smoking set after using this type of tobacco for a period of time.
- the Coanda effect also known as the Coanda effect or the Coanda effect, refers to the tendency of the fluid flow or airflow to leave the original flow direction and change to flow with the surface of the protruding object due to surface friction when the fluid flows over the surface of the object.
- the Venturi phenomenon means that a low pressure will be generated near a fluid flowing at a high speed, resulting in adsorption.
- the air entering the small hole can flow along the surface of the flue gas extraction cone; due to the existence of the Venturi phenomenon, the gas flowing at high speed along the surface of the extraction cone will form a negative pressure area at the mouth of the extraction cone.
- the concentration difference and the air pressure difference can be formed downstream of the closed tobacco section, so as to extract the fresh smoke generated by the closed tobacco section.
- a smoke extraction structure needs to be used in each cigarette, which will greatly increase the manufacturing cost of the cigarette. If the smoke extraction structure is independent and reused, the production cost of the cigarette can be effectively saved.
- the present invention provides an oxygen-depleted heating cigarette assembly, which includes an oxygen-depleted heating cigarette set, an oxygen-depleted heating cigarette and a depleted oxygen-heating smoking method.
- An oxygen-depleted heating type smoking appliance which includes a heating section, and a cigarette accommodating cavity is arranged in the heating section, wherein the oxygen-depleted heating type smoking appliance further includes a smoke extraction piece that can be separated from the smoke extraction piece, the smoke extraction piece It includes a hollow flue gas extraction cone and a fixed or detachable flue gas transmission pipe sleeved on the outer periphery of the flue gas extraction cone, wherein the hollow flue gas extraction cone has a cone on its top and/or side walls
- the circumferential side wall of the flue gas transmission pipe has at least one through hole, and the axial distance between the through hole and the bottom surface of the cone is smaller than the axial distance between the cone hole and the bottom surface of the cone.
- the bottom end of the cone of the flue gas extraction cone is provided with an axially extending sleeve section; the end of the flue gas transmission pipe away from the cone is provided with an axially extending inner diameter enlarged section.
- a heating element is provided on the bottom surface and/or the circumferential side wall of the cigarette accommodating cavity.
- the oxygen-depleted heating smoking appliance of the present invention further comprises a cap, which is directly and detachably connected to the heating section or is detachably connected to each other through a sealing ring, and the cap has a gradually expanding inner cavity, which is truncated Conical shape, the cone apex angle is not more than 10 degrees, and the inner diameter end of the cap is detachably connected directly or indirectly to the heating section.
- the shape of the smoke extractor is suitable for being accommodated inside the cigarette holder cavity.
- An oxygen-depleted heated cigarette comprising a tobacco segment and a filter segment detachably connected to each other, wherein one end face and/or a circumferential side of the tobacco segment is sealed by an airtight foil.
- the unsealed end of the tobacco segment has an axially extending unfilled segment
- the filter segment has an exposed segment that is not wrapped in tipping paper
- the unfilled segment and the exposed segment are shaped to fit each other , such that the bare segment is inserted into the unfilled segment when the tobacco segment and filter segment are joined together.
- the shape of the unfilled section of the tobacco section is also suitable for splicing with the sleeve section of the flue gas extraction cone, and the shape of the exposed section of the filter section is also suitable for the expansion of the inner diameter of the flue gas delivery tube.
- the segments are plugged into each other.
- a smoking method using an oxygen-depleted heating cigarette assembly When smoking, the tobacco section and the filter section of the oxygen-depleted heating cigarette are disassembled, respectively assembled to the sleeve sections and the filter section at both ends of the smoke extraction member. In the inner diameter expansion section, a segmented cigarette is formed; then remove the cap of the oxygen-depleted heating cigarette, insert the tobacco segment of the segmented cigarette into the cigarette accommodating cavity of the heating section, cover the cap, and start the The heating element provided at the bottom surface and/or the circumferential side wall of the cigarette holder cavity performs suction.
- the advantages of the invention are: 1.
- the Venturi effect and Coanda effect are used to extract the flue gas without using air as a carrier, which can reduce the oxygen content, so the heating temperature can be greatly increased, which also enables this type of cigarette to use reconstituted tobacco leaves.
- Ordinary cigarette formulations can also be used to reduce costs; 2. With a closed structure, no tobacco residue will fall off, and there is no need to clean the smoking set frequently; 3. The aroma components in tobacco are released more fully, easy to be released continuously, and the taste is closer to traditional tobacco , more easily accepted by traditional smokers; 4. Segmented cigarette structure design, the flue gas extraction section can be reused, which greatly reduces the production cost.
- Fig. 1 is the structural representation when the oxygen-depleted cigarette of the present invention is combined with the flue gas extraction section
- Fig. 2 is the axial sectional view of the explosive structure to be assembled of Fig. 1,
- Figure 3 is an axial sectional view of a tobacco segment
- Figure 5 is an axial sectional view of the explosion structure to be assembled in the flue gas extraction section
- Figure 6 is a schematic diagram of the structure of the filter section
- Fig. 6 3-1, bare section, 3-2, tipping paper.
- Fig. 7 is an axial cross-sectional view of the explosive structure to be assembled of the oxygen-depleted heating smoking device.
- FIG. 7 4. Heating section, 4-1 cigarette holder chamber; 5. Sealing ring, 6. Cap, 6-1 gradually expanding inner chamber.
- Figure 8 is a schematic diagram of an oxygen-depleted heated cigarette (ie, the structure of a cigarette when it leaves the factory).
- Figure 9 is a schematic diagram of the external structure of inserting a cigarette into a heating smoking device during smoking.
- FIG. 10 is a cross-sectional view of the structure of FIG. 9 .
- Figure 11 is a schematic diagram of the structure of the smoking device when it is stored.
- Fig. 12 is an axial cross-sectional view of a hollow flue gas extraction cone (a cone hole is opened on the side wall of the extraction cone).
- the present invention will further describe the oxygen-depleted heating type smoking set, the oxygen-depleted heating type cigarette, the oxygen-depleted heating type cigarette assembly and the use method one by one in conjunction with the accompanying drawings:
- An oxygen-depleted heating type smoking device as shown in Figure 7, Figure 4, Figure 5, Figure 11 and Figure 12: it comprises a heating section (4), and the heating section (4) is provided with a cigarette accommodating cavity (4-1) , wherein the oxygen-depleted heating type smoking appliance further comprises a smoke extraction part (2) which can be separated from it, and the smoke extraction part (2) comprises a hollow type smoke extraction cone (2-1) and a fixed type of smoke extraction cone (2-1).
- the bottom end of the cone body of the flue gas extraction cone (2-1) is provided with an axially extending sleeve section (2-1-5); the end of the flue gas transmission pipe (2-2) away from the cone body With an axially extending inner diameter enlargement
- the length of the casing section (2-1-5) is 3-5 mm, and the length of the inner diameter enlarged section (2-2-3) is equal to the length of the casing section (2-1-5).
- the number of through holes (2-2-2) on the pipe wall of the flue gas transmission pipe (2-2) is 2-10 evenly distributed along the circumference, the diameter of the through holes is 0.5-2mm, and the diameter of the through holes is inversely proportional to the number of holes, preferably Ground, the number of through holes is 2, and the hole diameter is 0.8mm.
- the ratio between the length of the extraction cone and the length of the transfer pipe is in the range of 1:3 to 1:6, preferably 1:4.
- a heating element is provided on the bottom surface and/or the circumferential side wall of the cigarette accommodating cavity (4-1).
- the oxygen-depleted heating smoking appliance of the present invention further comprises a cap (6), which is detachably connected to the heating section (4) directly or through a sealing ring (5), and the cap (6) has a gradual Expanded inner cavity (6-1), which is in the shape of a frustoconical, and whose cone apex angle is not greater than 10 degrees, and the smaller end of the inner diameter of the cap (6) is directly or indirectly detachably connected to the heating section (4) .
- the setting of the angle of the cone apex not greater than 10° is to ensure that the air can smoothly enter the pipe through the through hole (2-2-2) on the wall of the flue gas transmission pipe to realize the effect of flue gas extraction.
- the heating cavity, the sealing ring and the cap are coaxial, and the cap is connected with the heating cavity by means of threads, snaps or magnetic attraction; the sealing ring (5) is embedded in the heating cavity through a groove machined on the end face of the heating cavity .
- the shape of the flue gas extraction member (2) is suitable for being accommodated inside the cigarette holder cavity (4-1) of the heating section (4) (see FIG. 11 ).
- An oxygen-depleted heating cigarette as shown in Figure 8: comprising a tobacco segment (1) and a filter segment (3) that are detachably connected to each other, wherein one end face and/or circumference of the tobacco segment (1) Sealed sideways with airtight foil.
- the unsealed end of the tobacco segment (1) has an axially extending unfilled segment (1-4) (see Figures 2, 3), and the filter segment (3) has an unplugged paper ( 3-2) Wrapped bare segment (3-1) (see Fig. 6), the shape of the unfilled segment and the bare segment fits each other so that: when the tobacco segment (1) is connected to the filter segment (3) When together, the bare segments (3-1) are inserted into the unfilled segments (1-4) (see Figures 3, 6, 8).
- the tobacco segment is conventional tobacco or reconstituted tobacco leaf base.
- the length of the unfilled segment (1-4) of the tobacco segment is 3-5mm, and the length of the exposed segment (3-1) of the filter segment is equal to the length of the unfilled segment (1-4) .
- An oxygen-depleted heated cigarette assembly as shown in Figures 9 and 10, includes an oxygen-depleted heated cigarette (B) and an oxygen-depleted heated cigarette (A).
- Fig. 10 combined with Fig. 3, Fig. 5 and Fig. 6 that the shape of the unfilled segment (1-4) of the tobacco segment (1) is also suitable for the smoke extraction cone (2-1). ) of the casing sections (2-1-5) are plugged with each other, and the shape of the exposed section (3-1) of the filter section (3) is also suitable for 3 positions of the smoke transmission pipe (2-2). The inner diameter enlarged sections (2-2-3) are inserted into each other.
- the smoking method using the above-mentioned oxygen-depleted heating cigarette assembly is as follows: when smoking, the tobacco section (1) and the filter section (3) of the oxygen-depleted heating cigarette are disassembled and assembled into the smoke extraction In the casing section (2-1-5) and the inner diameter expansion section (2-2-3) at both ends of the section (2), a segmented cigarette is formed (see Figure 1 and Figure 2); then remove the oxygen-depleted heating type.
- the cigarettes of the present invention and the heating cigarette are placed separately when leaving the factory, wherein the tobacco segment (1) and the filter segment (3) are respectively wrapped and placed together (see Figure 8), and the heating cigarette is placed together. It can be placed together with the smoke extraction section (2) and can be reused (see Figure 11); when smoking, first separate the tobacco section (1) from the filter section (3), and separate the tobacco section (1), smoke The extraction section (2) and the filter section (3) are inserted in sequence to form a segmented cigarette to be smoked, and then inserted into the heated smoking set (see Figures 9 and 10); after smoking, the tobacco section (1) and The filter section (3) is discarded, and the heating smoking device and the smoke extraction section (2) can be reused.
- the structure of the oxygen-depleted heating smoking device during storage is shown in FIG. 11 .
- the air When inhaling, the air first enters the space between the cap 6 and the segmented cigarette, and then enters the interior of the flue gas transmission tube through the through hole (2-2-2) on the wall of the flue gas transmission tube and sprays onto the surface of the extraction cone , due to the Venturi effect and Coanda effect, a negative pressure will be formed at the cone hole (2-1-4); the heating of the tobacco segment will form a positive pressure in the tobacco rod part; the existence of positive and negative pressure differences will cause smoke Therefore, the smoke flows out of the cone hole (2-1-4), and enters the oral cavity through the lumen of the smoke transmission tube and the filter tip.
- the flue gas transmission pipe has the dual functions of flue gas extraction and flue gas cooling.
- the suction resistance of the cigarette can be adjusted by changing the diameter and position of the through hole (2-2-2) on the smoke transmission pipe.
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
Description
Claims (10)
- 一种贫氧加热式烟具,其包括加热段(4),加热段(4)内具有烟支容纳腔(4-1),其特征在于,所述贫氧加热式烟具还包括与其可分体式设置的烟气提取件(2),所述烟气提取件(2)包括中空型烟气提取锥(2-1)和固定式或可拆卸式套在该烟气提取锥(2-1)的锥体(2-1-2)外周的烟气传输管(2-2),所述椎体(2-1-2)的锥顶和/或侧壁上具有锥孔(2-1-4),所述烟气传输管(2-2)的周向侧壁上具有至少一个通孔(2-2-2),该通孔(2-2-2)距离所述锥体(2-1-2)底面的轴向距离小于锥孔(2-1-4)距离锥体(2-1-2)底面的轴向距离。
- 根据权利要求1所述的贫氧加热式烟具,其特征在于,所述烟气提取锥(2-1)的锥体底面端设有轴向延伸的套管段(2-1-5);所述烟气传输管(2-2)远离所述锥体的一端具有轴向延伸的内径扩大段(2-2-3)。
- 根据权利要求1所述的贫氧加热式烟具,其特征在于,所述烟支容纳腔(4-1)的底面和/或周向侧壁处设有加热元件。
- 根据权利要求1所述的贫氧加热式烟具,其特征在于,还包括盖帽(6),其与所述加热段(4)直接彼此可拆卸连接或者通过密封环(5)实现可拆卸连接,所述盖帽(6)具有渐扩式内腔(6-1),其呈截头圆锥状,其圆锥顶角不大于10度,该盖帽(6)的内径较小端与所述加热段(4)直接或间接可拆卸连接。
- 根据权利要求1所述的贫氧加热式烟具,其特征在于,所述烟气提取件(2)的外形适合于将其收纳到所述烟支容纳腔(4-1)内部。
- 一种贫氧加热式烟支,其特征在于,其包括彼此可拆卸式连接的烟草段(1)和滤嘴段(3),其中所述烟草段(1)的一个端面和/或周向侧面被气密性箔纸密封。
- 根据权利要求6所述的贫氧加热式烟支,其特征在于,所述烟草段(1)内未被密封的那一端具有轴向延伸的未填充段(1-4),所述滤嘴段(3)具有未被接装纸(3-2)包裹的裸露段(3-1),所述未填充段和所述裸露段的形状彼此配合,使得:当烟草段(1)与滤嘴段(3)连接在一起时,所述裸露段(3-1)插入到所述未填充段(1-4)中。
- 一种贫氧加热式卷烟组件,其包括权利要求1-5中任一项所述的贫氧加热式烟具(B)和权利要求6-7中任一项所述的贫氧加热式烟支(A)。
- 根据权利要求8所述的贫氧加热式卷烟组件,其特征在于,所述烟草段(1)的未填充段(1-1)的形状还适合与所述烟气提取锥(2-1)的套管段(2-1-5)彼此插接,所述滤嘴段(3)的裸露段(3-1)的形状还适合与所述烟气传输管(2-2)的所述内径扩大段(2-2-3)彼此插接。
- 一种贫氧加热式抽烟方法,其特征在于,其使用权利要求8所述的贫氧加热式卷烟组件,抽吸时,将所述贫氧加热式烟支的烟草段(1)和滤嘴段(3)拆开,分别组装到所述烟气提取件(2)两端的套管段(2-1-5)和内径扩大段(2-2-3)中,形成分段式烟支;然后取下贫氧加热式烟具的盖帽(6),将所述分段式烟支的烟草段(1)插入到加热段(4)的烟支容纳腔(4-1)内,盖回盖帽(6),启动所述烟支容纳腔(4-1)的底面和/或周向侧壁处设置的加热元件,进行抽吸。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/259,261 US20240065332A1 (en) | 2020-12-25 | 2020-12-25 | Low-oxygen heating-type smoking set |
JP2023538947A JP2024506125A (ja) | 2020-12-25 | 2020-12-25 | 低酸素型加熱式喫煙セット |
KR1020237024702A KR20230128035A (ko) | 2020-12-25 | 2020-12-25 | 저-산소 가열식 흡연 세트 |
PCT/CN2020/139288 WO2022133979A1 (zh) | 2020-12-25 | 2020-12-25 | 一种贫氧加热式烟具 |
EP20966545.4A EP4268626A1 (en) | 2020-12-25 | 2020-12-25 | Low-oxygen heating-type smoking set |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2020/139288 WO2022133979A1 (zh) | 2020-12-25 | 2020-12-25 | 一种贫氧加热式烟具 |
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WO2022133979A1 true WO2022133979A1 (zh) | 2022-06-30 |
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ID=82158641
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PCT/CN2020/139288 WO2022133979A1 (zh) | 2020-12-25 | 2020-12-25 | 一种贫氧加热式烟具 |
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Country | Link |
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US (1) | US20240065332A1 (zh) |
EP (1) | EP4268626A1 (zh) |
JP (1) | JP2024506125A (zh) |
KR (1) | KR20230128035A (zh) |
WO (1) | WO2022133979A1 (zh) |
Citations (8)
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KR20230128035A (ko) | 2023-09-01 |
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