CN215274761U - Fragrance device - Google Patents
Fragrance device Download PDFInfo
- Publication number
- CN215274761U CN215274761U CN202023230068.9U CN202023230068U CN215274761U CN 215274761 U CN215274761 U CN 215274761U CN 202023230068 U CN202023230068 U CN 202023230068U CN 215274761 U CN215274761 U CN 215274761U
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- Prior art keywords
- atomizing
- shell
- atomizing head
- electrode
- magnetic block
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- 239000003205 fragrance Substances 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000000889 atomisation Methods 0.000 claims abstract description 20
- 239000011550 stock solution Substances 0.000 claims description 17
- 229920000742 Cotton Polymers 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009688 liquid atomisation Methods 0.000 claims description 2
- 239000000341 volatile oil Substances 0.000 description 13
- 230000006872 improvement Effects 0.000 description 11
- 239000002304 perfume Substances 0.000 description 11
- 230000008859 change Effects 0.000 description 6
- 239000003595 mist Substances 0.000 description 6
- 238000004026 adhesive bonding Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The utility model provides a fragrance device, which comprises a shell, an atomizing head and a liquid storage bottle, wherein the shell comprises a body and an accommodating chamber which is arranged in the body and is provided with an opening, and the atomizing head is detachably connected with the shell; the liquid storage bottle is connected with the atomizing head, when the atomizing head is connected with the shell, the atomizing head seals the opening of the containing chamber, and the liquid storage bottle is arranged in the containing chamber; an atomization device is arranged in the atomization head, the atomization device is connected with the liquid storage bottle and is used for atomizing liquid in the liquid storage bottle, a power supply assembly is arranged in the shell, the atomization head is detachably and electrically connected with the shell, and the power supply assembly is used for supplying power to the atomization device; the fragrance device has the advantages of reasonable structure and convenient use.
Description
Technical Field
The utility model belongs to the technical field of perfuming equipment, concretely relates to fragrance device.
Background
Along with the improvement of the living standard of people, the fragrance is more and more favored by people, and the unique charm of the fragrance is utilized to extend the communication from vision, hearing to smell, so that the communication is deeper; the environment is optimized by the fragrance, so that customers can fully feel the capital that the comfortable and satisfactory warm service increases the customers, for example, the fragrance device is used in various occasions such as families, hotel rooms, halls, passageways, vehicles and the like, and the fragrance is automatically added into the space. However, the fragrance device in the prior art has certain inconvenience when in use, for example, the utility model patent with application number 201922000715.8, named as long-endurance portable essential oil fragrance-expanding machine, in particular: in order to make the whole of fragrance device more succinct relatively or in order to avoid the perfume bottle to receive the damage easily, consequently can put into the liquid storage bottle that is used for holding perfume or essential oil in fragrance device's casing, and when perfume or the essential oil in the liquid storage bottle use the back need change, just need open the casing earlier and expose the liquid storage bottle after, then take out atomizer and essential oil bottle from the casing, then pull down the essential oil bottle from the atomizer and change, consequently, produced as above inconvenient in use's problem.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a rational in infrastructure, convenient to use's fragrance device.
In order to solve the technical problem, the utility model discloses the technical scheme who uses is:
a fragrance device comprises a shell, an atomizing head and a liquid storage bottle, wherein the shell comprises a body and a containing chamber which is arranged in the body and provided with an opening, and the atomizing head is detachably connected with the shell; the liquid storage bottle is connected with the atomizing head, when the atomizing head is connected with the shell, the atomizing head seals the opening of the containing chamber, and the liquid storage bottle is arranged in the containing chamber; be provided with atomizing device in the atomizing head, atomizing device with the stock solution bottle is connected, be used for with the liquid atomization in the stock solution bottle, be provided with power supply module in the casing, the atomizing head with the electricity is connected can be dismantled to the casing, power supply module is used for doing atomizing device supplies power.
As a further improvement of the fragrance device, the body is further provided with a support plate, the support plate is connected with the body, the support plate is positioned on one side of the opening of the containing chamber and extends upwards to form a step part on the shell, and when the atomizing head is connected with the shell, the atomizing head fills the step part, closes the opening of the containing chamber and is abutted against the support plate.
As a further improvement of the fragrance device, the shell is further provided with an electrode holder, the electrode holder is fixedly connected with the shell, and the electrode holder is electrically connected with the control circuit board; the atomizing head is provided with an electrode bullet needle matched with the electrode holder, the electrode bullet needle is fixed on the atomizing head, and the electrode bullet needle is electrically connected with the atomizing device.
As a further improvement of the fragrance device, the fragrance device further comprises a magnetic suction assembly, wherein the magnetic suction assembly comprises at least one first magnetic block and one second magnetic block, the first magnetic block is fixedly connected with the shell, the second magnetic block is fixedly connected with the atomizing head, when the atomizing head is arranged on the step part, the first magnetic block and the second magnetic block correspond to each other, and the first magnetic block and the second magnetic block attract each other; the atomizing head is arranged behind the step part, the electrode elastic needle corresponds to the electrode seat, and the electrode elastic needle is connected with the electrode seat in an abutting mode and is communicated with the electrode seat.
As a further improvement of the fragrance device, the power supply assembly comprises a control circuit board and/or a battery, the battery is electrically connected with the control circuit board, and the atomization device is electrically connected with the control circuit board.
As a right further improvement of the fragrance device, the atomizing head further comprises an atomizing cavity and a mist outlet hole, the mist outlet hole is communicated with the atomizing cavity, the atomizing device is installed in the atomizing cavity, one surface of the atomizing device is communicated with the mist outlet hole, and the other surface of the atomizing device is connected with the liquid storage bottle.
As a further improvement on the fragrance device, the atomization device is an ultrasonic micropore atomization sheet
As a further improvement of the fragrance device, the liquid storage bottle comprises a bottle body and a liquid absorption cotton core, the liquid absorption cotton core is connected with the bottle body, one end of the liquid absorption cotton core extends into the bottle body, and the other end of the liquid absorption cotton core extends out of the bottle body and is abutted to the atomizing device.
As a further improvement of the fragrance device, the shell is further provided with a clamping piece, and the clamping piece is fixedly connected with the shell.
As a further improvement of the fragrance device, the electrode seat and the first magnetic block are close to each other.
As a further improvement to the fragrance apparatus, the electrode holder is located on the step.
Compared with the prior art the beneficial effects of the utility model mainly appear: the step or the concave part is arranged on the shell, and the atomizing head is arranged on the step and forms a whole with the shell, namely the shell and the edge of the atomizing head form smooth transition; therefore, the step of opening the shell when the liquid storage bottle is replaced in the prior art is simplified, and the convenience of the fragrance device in use is further improved.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is a schematic view of the overall structure of a fragrance device of the present invention;
FIG. 2 is a diagram of a state of the fragrance device of the present invention after the atomizing head and the liquid storage bottle are removed;
FIG. 3 is a schematic structural view of an atomizing head of a fragrance device according to the present invention;
FIG. 4 is a diagram illustrating a state of the liquid storage bottle removed from the atomizing head of the fragrance apparatus of the present invention;
FIG. 5 is an exploded view of a fragrance device according to the present invention;
fig. 6 is a schematic view of the overall structure of another embodiment of the fragrance device of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the illustrated embodiments are not intended to limit the present invention, and in the present embodiments, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and the present invention is described only, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as limited to the present invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like as used herein are for illustrative purposes only.
As shown in fig. 1-6, the present embodiment provides a fragrance device, which comprises a housing 1, an atomizing head 2 and a liquid storage bottle 3, wherein the housing 1 comprises a body 51 and a support plate 52, a receiving chamber 12 with an opening 13 is formed in the body 51, the support plate 52 is integrally formed with the body 51, and the support plate 52 is located at one side of the opening 13 of the receiving chamber 12 and extends upwards, so that a step 11 or a so-called depression is formed on the housing 1; the support plate 52 is located at the top of the body 51 and extends upward with respect to the longitudinal axis direction of the body 51. The atomizing head 2 is detachably connected with the shell 1, the liquid storage bottle 3 is connected with the atomizing head 2, when the atomizing head 2 is connected with the shell 1, the atomizing head 2 fills the step part 11, the atomizing head 2 also seals the opening 13 of the containing chamber 12, the atomizing head 2 is abutted against the support plate 52, and the liquid storage bottle 3 is inserted into the containing chamber 12 from the opening 13 of the containing chamber 12; in the present embodiment, the outer edges of the housing 1 and the atomizing head 2 form a smooth transition, specifically, the atomizing head 2 is a part of the housing 1, and the step 11 on the housing 1 is filled to form a whole. Stock solution bottle 3 is used for putting into perfume or essential oil, is provided with atomizing device 22 in the atomising head 2, and atomizing device 22 is connected with stock solution bottle 3 and is arranged in atomizing perfume or the essential oil in the stock solution bottle 3 and finally disperses to go to the air circumstance, is provided with power supply module in the casing 1, and the electricity can be dismantled with casing 1 to atomising head 2 and be connected, and power supply module is used for the 22 power supplies of atomizing device. The atomizing device 22 in this embodiment is an ultrasonic microporous atomizing sheet. When perfume or essential oil in the stock solution bottle 3 use the end and need change, directly grip atomising head 2 and can follow casing 1 with atomising head 2 and stock solution bottle 3 and take out, then alright to the corresponding change of stock solution bottle 3 to make the fragrant atmosphere device more simple and convenient relatively when changing stock solution bottle 3.
As shown in fig. 2-5, in the preferred embodiment, the power supply assembly includes a control circuit board 14 and/or a battery 15, the battery 15 is electrically connected to the control circuit board 14, and the atomizing device 22 is electrically connected to the control circuit board 14, although the power supply for the fragrance device may be provided by an external power source in addition to the battery 15.
As shown in fig. 2-5, in a preferred embodiment, the atomizing head 2 further includes an atomizing chamber (not shown) and a mist outlet 23, the mist outlet 23 is communicated with the atomizing chamber, the atomizing device 22 is installed in the atomizing chamber, one surface of the atomizing device 22 is communicated with the mist outlet 23, and the other surface of the atomizing device 22 is connected with the liquid storage bottle 3. The control circuit board 14 is used for converting the electric energy into the oscillation signal of high frequency and outputting to the micropore atomization piece, and the micropore atomization piece converts the high frequency oscillation electric signal into mechanical energy, namely high frequency vibration (ultrasonic wave), and its circuit component structure can refer to the utility model patent that application number is 201621348358.4, the name is "an ultrasonic atomization device 22". For the structure and atomization principle of the microporous atomization sheet, please refer to the utility model patent with application number 201821624996.3 and patent name "a liquid storage bottle 3 for an aroma diffuser and an aroma diffuser", so the detailed description of the composition and operation principle of the microporous atomization sheet is omitted here.
As shown in fig. 2-5, in a preferred embodiment, the housing 1 is further provided with an electrode holder 16, the electrode holder 16 is fixed to the housing 1 by gluing or clamping, and the electrode holder 16 is electrically connected to the control circuit board 14; the atomizing head 2 is provided with an electrode spring needle 17 which is matched with the electrode holder 16, the electrode spring needle 17 and the atomizing head 2 are fixed by gluing or clamping, and the electrode spring needle 17 is electrically connected with an atomizing device 22, namely a micropore atomizing sheet; in this embodiment, two electrode holders 16 and two electrode elastic needles 17 are provided, and correspond to the positive and negative electrodes of the power supply respectively. Further, the magnetic suction device comprises a magnetic suction assembly, the magnetic suction assembly comprises at least one first magnetic block 18 and one second magnetic block 19, the first magnetic block 18 and the shell 1 are fixed in a gluing or clamping manner, the second magnetic block 19 is fixed in an atomizing head 2 in a gluing or clamping manner, after the atomizing head 2 is arranged in the step 11 or the recess, the first magnetic block 18 and the second magnetic block 19 correspond to each other, and the first magnetic block 18 and the second magnetic block 19 are mutually attracted; after the atomizing head 2 is arranged in the step 11 or the recess, the electrode elastic needle 17 corresponds to the electrode holder 16, and the electrode elastic needle 17 is abutted against the electrode holder 16 to form conduction. Can make atomising head 2 and casing 1 form fixedly through the inter attraction between first magnetic path 18 and the second magnetic path 19, the atomising head 2 passes through magnetism with casing 1 simultaneously and inhales fixed back, also can make to form good the conducting between electrode holder 16 and the electrode bullet needle 17. And when the perfume or the essential oil consumption of stock solution bottle 3 ended and need be changed, only need to hold atomizing head 2 and casing 1 respectively and then apply one and be greater than the magnetic attraction that forms between first magnetic path 18 and the second magnetic path 19 and can separate atomizing head 2 together with stock solution bottle 3 from casing 1, then pull down and change new stock solution bottle 3 from atomizing head 2, at last will change stock solution bottle 3 atomizing head 2 dress to casing 1 again can. In this embodiment, the electrode holder 16 and the first magnetic block 18 are close to each other, and the electrode holder 18 is located on the step portion 11, that is, after the liquid storage bottle 3 is inserted into the receiving chamber 12, the electrode holder 18 and the electrode elastic needle 17 can be closed to form contact conduction.
As shown in fig. 5, in the preferred embodiment, the liquid storage bottle 3 comprises a bottle body 31 and a liquid absorbing cotton core 32, the liquid absorbing cotton core 32 is connected with the bottle body 31, one end of the liquid absorbing cotton core 32 extends into the bottle body 31, and the other end extends out of the bottle body 31 and abuts against the microporous atomization sheet; the cotton core 32 of imbibition utilizes capillary phenomenon to be located the perfume or the essential oil of stock solution bottle 3 and derives outside bottle 31 in the bottle 31, promptly, offsets with the micropore atomization piece, and the high frequency oscillation of micropore atomization piece breaks up perfume or essential oil into the micromolecule and escapes from the micropore of micropore atomization piece, and then accomplishes the atomizing. Furthermore, the shell 1 is further provided with a clamping piece 4, the clamping piece 4 is fixed with the shell 1 through a bolt or a card, the fragrance device can be fixed on the installation position through the clamping piece 4, for example, the fragrance device is clamped and fixed on an air outlet of an air conditioner, and the atomized perfume or essential oil can be further diffused in the corresponding space environment by means of the air volume of the air outlet of the air conditioner.
In another embodiment, a fragrance device is also provided, which comprises a shell 1, an atomizing head 2 and a liquid storage bottle 3, wherein a containing chamber 12 with an opening 13 is arranged in the shell 1, and the atomizing head 2 is detachably connected with the shell 1; the liquid storage bottle 3 is connected with the atomizing head 2, when the atomizing head 2 is connected with the shell 1, the atomizing head 2 seals the opening 13 of the containing chamber 12, and the liquid storage bottle 3 is arranged in the containing chamber 12; an atomizing device 22 is arranged in the atomizing head 2, the atomizing device 22 is connected with the liquid storage bottle 3, the atomizing device 22 is used for atomizing perfume or essential oil in the liquid storage bottle 3, a power supply assembly is further arranged in the shell 1, the atomizing head 2 is detachably and electrically connected with the shell 1, and the power supply assembly is used for supplying power to the atomizing device 22; in this embodiment, the step portion 11 is not provided, i.e., the upper end portion of the housing 1 is planar.
Compared with the prior art the beneficial effects of the utility model mainly appear: the step or the concave part is arranged on the shell, and the atomizing head is arranged on the step and forms a whole with the shell, namely the shell and the edge of the atomizing head form smooth transition; therefore, the step of opening the shell when the liquid storage bottle is replaced in the prior art is simplified, and the convenience of the fragrance device in use is further improved.
In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (11)
1. A fragrance apparatus, characterized by: the atomizing device comprises a shell, an atomizing head and a liquid storage bottle, wherein the shell comprises a body and a containing chamber with an opening, the containing chamber is arranged in the body, and the atomizing head is detachably connected with the shell; the liquid storage bottle is connected with the atomizing head, when the atomizing head is connected with the shell, the atomizing head seals the opening of the containing chamber, and the liquid storage bottle is arranged in the containing chamber; be provided with atomizing device in the atomizing head, atomizing device with the stock solution bottle is connected, be used for with the liquid atomization in the stock solution bottle, be provided with power supply module in the casing, the atomizing head with the electricity is connected can be dismantled to the casing, power supply module is used for doing atomizing device supplies power.
2. The fragrance apparatus according to claim 1, wherein: the body is further provided with a supporting plate, the supporting plate is connected with the body, the supporting plate is positioned on one side of the opening of the containing chamber and extends upwards to form a step part on the shell, and when the atomizing head is connected with the shell, the atomizing head fills the step part, seals the opening of the containing chamber and is abutted to the supporting plate.
3. The fragrance apparatus according to claim 2, wherein: the shell is also provided with an electrode holder, and the electrode holder is fixedly connected with the shell; the atomizing head is provided with an electrode bullet needle matched with the electrode holder, the electrode bullet needle is fixed on the atomizing head, and the electrode bullet needle is electrically connected with the atomizing device.
4. The fragrance apparatus according to claim 3, wherein: the magnetic attraction component comprises at least one first magnetic block and at least one second magnetic block, the first magnetic block is fixedly connected with the shell, the second magnetic block is fixedly connected with the atomizing head, when the atomizing head is arranged on the step part, the first magnetic block and the second magnetic block correspond to each other, and the first magnetic block and the second magnetic block attract each other; the atomizing head is arranged behind the step part, the electrode elastic needle corresponds to the electrode seat, and the electrode elastic needle is connected with the electrode seat in an abutting mode and is communicated with the electrode seat.
5. The fragrance apparatus according to claim 1 or 2, wherein: the power supply assembly comprises a control circuit board and/or a battery, the battery is electrically connected with the control circuit board, and the atomizing device is electrically connected with the control circuit board.
6. The fragrance apparatus according to claim 1 or 2, wherein: the atomizing head is still including atomizing chamber and play fog hole, go out the fog hole with the atomizing chamber is linked together, atomizing device install in the atomizing chamber, just atomizing device's one side with state the fog hole and be linked together, atomizing device's another side with the stock solution bottle is connected.
7. The fragrance apparatus according to claim 6, wherein: the atomization device is an ultrasonic micropore atomization sheet.
8. The fragrance apparatus according to claim 1 or 2, wherein: the liquid storage bottle comprises a bottle body and a liquid absorption cotton core, the liquid absorption cotton core is connected with the bottle body, one end of the liquid absorption cotton core extends into the bottle body, and the other end of the liquid absorption cotton core extends out of the bottle body and is abutted to the atomizing device.
9. The fragrance apparatus according to claim 1 or 2, wherein: the shell is further provided with a clamping piece, and the clamping piece is fixedly connected with the shell.
10. The fragrance apparatus according to claim 4, wherein: the electrode seat is positioned on the step part.
11. The fragrance apparatus according to claim 10, wherein: the electrode seat and the first magnetic block are close to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023230068.9U CN215274761U (en) | 2020-12-28 | 2020-12-28 | Fragrance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023230068.9U CN215274761U (en) | 2020-12-28 | 2020-12-28 | Fragrance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215274761U true CN215274761U (en) | 2021-12-24 |
Family
ID=79528245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023230068.9U Ceased CN215274761U (en) | 2020-12-28 | 2020-12-28 | Fragrance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215274761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183843A (en) * | 2022-05-17 | 2022-10-14 | 九牧厨卫股份有限公司 | Liquid level determination method and device, fragrance device and fragrance mirror |
| CN115227085A (en) * | 2022-05-17 | 2022-10-25 | 九牧厨卫股份有限公司 | Fragrant mirror |
-
2020
- 2020-12-28 CN CN202023230068.9U patent/CN215274761U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183843A (en) * | 2022-05-17 | 2022-10-14 | 九牧厨卫股份有限公司 | Liquid level determination method and device, fragrance device and fragrance mirror |
| CN115227085A (en) * | 2022-05-17 | 2022-10-25 | 九牧厨卫股份有限公司 | Fragrant mirror |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A fragrance device Effective date of registration: 20231025 Granted publication date: 20211224 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Panyu branch Pledgor: Guangzhou Chiyang fragrance Technology Co.,Ltd. Registration number: Y2023980062581 |
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| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20230425 Decision number of declaring invalidation: 561562 Granted publication date: 20211224 |