CN106152818A - Heat exchanger fin and processing technology thereof - Google Patents
Heat exchanger fin and processing technology thereof Download PDFInfo
- Publication number
- CN106152818A CN106152818A CN201610513101.8A CN201610513101A CN106152818A CN 106152818 A CN106152818 A CN 106152818A CN 201610513101 A CN201610513101 A CN 201610513101A CN 106152818 A CN106152818 A CN 106152818A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- plate
- plates
- exchanger fin
- sides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 23
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/12—Fastening; Joining by methods involving deformation of the elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of heat exchanger fin, heat exchanger fin includes two plates, and the side of one of them plate is connected with the side of another plate, and opposite side is connected with the opposite side of another plate, plate uses compressing being made, and forms heat exchanger channels between two plates of heat exchanger fin.The invention also discloses the processing technology of a kind of heat exchanger fin, including three steps.Owing to heat exchanger fin is to be formed by connecting by two plates, the both sides of two plates connect mutually, and both sides all seal (that is: liquid or gas will not circulate) from both sides, simultaneously, heat exchanger channels can be formed between two plates, gas in heat exchanger channels or liquid with heat exchanger channels outside gas or liquid when carrying out conduction of heat, owing to this heat exchanger channels is formed by two plates, therefore heat exchanger channels is narrow and small, the gas of heat exchanger channels or liquid can be with the sheet contacts of both sides carry out conduction of heat, so heat exchange efficiency is high.
Description
Technical field
The present invention relates to a kind of heat exchanger fin, moreover, it relates to the processing technology of a kind of heat exchanger fin.
Background technology
Heat exchanger fin is requisite parts in heat transfer equipment, and traditional heat exchanger fin is the most all a single plate,
There is the gas or liquid that temperature is different on the both sides of heat exchanger fin, carry out conduction of heat by heat exchanger fin, thus realize heat exchange, so
The heat conduction efficiency of heat exchanger fin low, heat transfer time is long, thus causes using inconvenience.
Summary of the invention
The invention discloses a kind of heat exchanger fin, additionally disclose the processing technology of a kind of heat exchanger fin, to solve above-mentioned skill
At least one of art problem.
The invention provides a kind of heat exchanger fin, heat exchanger fin includes two plates, the side of one of them plate and another
The side of plate is connected, and opposite side is connected with the opposite side of another plate, and plate uses compressing being made, heat exchanger fin
Two plates between formed heat exchanger channels.
In the present invention, owing to heat exchanger fin is to be formed by connecting by two plates, the both sides of two plates connect mutually, and
Both sides all seal (that is: liquid or gas will not circulate from both sides), meanwhile, can form heat exchange and lead between two plates
Road, gas in heat exchanger channels or liquid with heat exchanger channels outside gas or liquid when carrying out conduction of heat, due to this heat exchange
Passage is formed by two plates, and therefore heat exchanger channels is narrow and small, and the gas of heat exchanger channels or liquid can connect with the plate of both sides
Touch and carry out conduction of heat, so heat exchange efficiency is high, heat-exchange time can be reduced, increase the heat exchange amount in the unit interval.
In some embodiments, plate forms multiple shrinkage pool and multiple projecting apertures.Thus, the multiple shrinkage pools on plate
Existence with multiple projecting apertures can increase the contact area of the gas of heat exchanger channels or liquid and plate, thus increases further
Heat exchange efficiency.
In some embodiments, the both sides of plate are equipped with folding edge, and bending edge is all passed through in the both sides of two plates
Edge connects.Thus, folding edge can facilitate two plates to connect.
In some embodiments, the folding edge of two plate both sides uses the mode of welding to connect.Thus, weldering is used
The mode connect is attached, so that the both sides of heat exchanger fin fully seal, prevents the gas of heat exchanger channels or liquid from changing
The both sides of backing are flowed out.
In some embodiments, plate is rectangle, and the cross section of the heat exchanger channels of two plate formation is elongated,
Plate uses stainless steel material to be made.Thus, the heat exchanger channels of strip is narrow and small, gas in heat exchanger channels or
All and sheet contacts, contact area is big, can increase heat exchange efficiency for liquid.
According to another aspect of the present invention, it is provided that the processing technology of a kind of heat exchanger fin, comprise the following steps: (1). pressure
System: take plate, utilizes compacting tool set to suppress plate, the surface of plate is suppressed multiple shrinkage pool and projecting apertures；(2). bending: by plate
The both sides of sheet all bend；(3). welding: two plates are welded together, the bending place of one of them plate side and another
The bending place, side of plate welds, and the bending place of opposite side welds with the opposite side bending place of another plate, makes
Two plates couple together and become heat exchanger fin, form heat exchanger channels between two plates.
In some embodiments, in step (1) or step (2) or step (3), plate is cuboid, and plate uses not
Rust Steel material is made.
In the method for the present invention, can make a high heat exchanger fin of heat exchange efficiency, heat exchanger fin is due to by two plate welderings
Connecing and form, form narrow and small heat exchanger channels simultaneously between two plates, the gas of heat exchanger channels or liquid can be with both sides
Sheet contacts also carries out conduction of heat, so heat exchange efficiency is high, can reduce heat-exchange time, increase the heat exchange amount in the unit interval.
Accompanying drawing explanation
Fig. 1 is the structural representation of the heat exchanger fin of one embodiment of the present invention；
Fig. 2 is that heat exchanger fin shown in Fig. 1 is along the structural representation in A-A direction；
Fig. 3 is that heat exchanger fin shown in Fig. 1 is along the structural representation in B-B direction；
Fig. 4 is the flow chart of the processing technology of the heat exchanger fin of one embodiment of the present invention.
Detailed description of the invention
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1～Fig. 3 schematically shows the structure of the heat exchanger fin of one embodiment of the present invention.
Such as Fig. 1～Fig. 3, a kind of heat exchanger fin, heat exchanger fin include two plates 1 (Fig. 1 can only see a plate 1, i.e. before
The plate 1 in face, plate 1 below is blocked by plate 1 above and conceals, all it can be seen that two plates 1 in Fig. 2 and Fig. 3),
Plate 1 can be made in the way of employing is compressing.
The concrete connected mode of two plates 1 is as follows: the plate 1 before shown in Fig. 1 is (under shown in corresponding diagram 2 or Fig. 3
The plate 1 in face) left side and plate 1 (this plate 1 is hidden, above plate 1 shown in corresponding diagram 2 or Fig. 3) below
Left side is connected, before the right side of plate 1 (shown in corresponding diagram 2 or Fig. 3 plate 1) below and plate 1 (this plate 1 quilt below
Conceal, above plate 1 shown in corresponding diagram 2 or Fig. 3) right side be connected, thus two plates 1 define heat exchange after connecting
Sheet, it can be seen that be also formed with a heat exchanger channels 11 between the two of this heat exchanger fin plates 1 from Fig. 2 or Fig. 3, this changes
The passage of heat 11 is narrow and small and elongated, can allow liquid or the gas heat exchanger fin from Fig. 1 heat exchanger channels 11 upper end enter, warp
By heat exchanger channels 11, discharging from the lower end of heat exchanger channels 11, in the process, gas or liquid in heat exchanger channels 11 are permissible
Carrying out conduction of heat with the plate 1 of both sides, heat exchanger channels 11 then gas or liquid with outside carries out conduction of heat, thus realizes
The function of conduction of heat.
Meanwhile, in order to increase the conduction of heat heat exchange efficiency of heat exchanger fin, so that form multiple shrinkage pool 12 He on plate 1
Multiple projecting apertures 13 (certainly, shrinkage pool 12 and projecting apertures 13 are comparatively speaking, appear to be projecting apertures 13 from one side, from this face reversely
Past is then shrinkage pool 12), the existence of projecting apertures 13 and shrinkage pool 12 so that some place of heat exchanger channels 11 becomes the narrowest and small, and
And also increase heat exchange area.
In the present embodiment, between two plates 1, concrete connected mode is: use the mode of welding to connect, at plate 1
Both sides (i.e. left side and right side), all form folding edge 14, the existence of Fig. 1 folding edge 14 has two benefits: the side of being
Just the welding between two plates 1, two is to allow formation heat exchanger channels 11 between two plates 1 (permissible from Fig. 2 and Fig. 3
Find out), when the curvature of folding edge 14 is the biggest, the cross-sectional area of the heat exchanger channels 11 formed between two plates 1 is the biggest,
When folding edge 14 curvature more hour, the cross-sectional area of the heat exchanger channels 11 formed between two plates 1 is the least.Certainly,
In other embodiments, other concrete mode can also be used between two plates 1 to be attached: such as: one-body molded, or
Person's screw connections etc., no matter which kind of connected mode, the most at least need to meet following condition, the heat exchanger fin that two plates 1 are formed
Can not there be gap both sides (left side shown in Fig. 1 and right side), that is to say and needs to meet the liquid in heat exchanger channels 11 or gas
Can not flow out from the both sides of heat exchanger fin.
In the present embodiment, plate 1 preferably employs stainless steel material and makes, and stainless steel material has good heat conductivility,
And service life is long.
In the present invention, owing to heat exchanger fin is to be formed by connecting by two plates 1, the both sides of two plates 1 connect mutually, and
And both sides all seal (that is: liquid or gas will not circulate from both sides), meanwhile, can be formed between two plates 1 and change
The passage of heat 11, gas in heat exchanger channels 11 or liquid with heat exchanger channels 11 outside gas or liquid when carrying out conduction of heat,
Owing to this heat exchanger channels 11 is formed by two plates 1, therefore heat exchanger channels 11 is narrow and small, and gas or the liquid of heat exchanger channels 11 can
To contact with the plate 1 of both sides and to carry out conduction of heat, so heat exchange efficiency is high, heat-exchange time can be reduced, increase the unit interval
Interior heat exchange amount.
Fig. 4 schematically shows the flow process of the processing technology of the heat exchanger fin of one embodiment of the present invention.
As shown in Figure 4, the processing technology of a kind of heat exchanger fin, comprise the following steps: S101. takes two stainless steel materials and makes
Plate 1, this plate 1 be preferably shaped to cuboid, (mode of compacting can be hydraulic way, this mould to utilize compacting tool set
Have compressing with plate 1 after shape corresponding) compacting plate 1, the surface of plate 1 is suppressed multiple shrinkage pool 12 and projecting apertures
13 heat exchange area of plate 1 (projecting apertures 13 and the shrinkage pools 12 can increase).
S102. bending: all bent the both sides of plate 1, can use bending machine to bend, it is only necessary to by plate 1
The certain angle of two lateral bucklings, the size of angle can be as desired to be changed.
S103. welding: two plates 1 are utilized welder together, the bending place of one of them plate 1 side is with another
The bending place, side of one plate 1 welds, and the bending place of opposite side has been welded with the opposite side bending place of another plate 1
Coming so that two plates 1 couple together and become heat exchanger fin, form heat exchanger channels 11 between two plates 1, the both sides of heat exchanger fin are
Seal, i.e. liquid in heat exchanger channels 11 or gas cannot flow out from the both sides of heat exchanger channels 11.
In the method for the present invention, can make a high heat exchanger fin of heat exchange efficiency, heat exchanger fin is owing to being welded by two plates 1
Connecing and form, form narrow and small heat exchanger channels 11, the gas of heat exchanger channels 11 or liquid between two plates 1 can be with two simultaneously
The plate 1 of side contacts and carries out conduction of heat, so heat exchange efficiency is high, can reduce heat-exchange time, increase changing in the unit interval
Heat.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, it is also possible to making some deformation and improvement, these broadly fall into the protection model of the present invention
Enclose.
Claims (7)
1. a heat exchanger fin, it is characterised in that described heat exchanger fin includes two plates (1), the side of one of them plate (1) with
The side of another plate (1) is connected, and opposite side is connected with the opposite side of another plate (1), and described plate (1) uses compacting
Molding is made, and forms heat exchanger channels (11) between two plates (1) of described heat exchanger fin.
Heat exchanger fin the most according to claim 1, it is characterised in that form on described plate (1) multiple shrinkage pool (12) and
Multiple projecting apertures (13).
Heat exchanger fin the most according to claim 2, it is characterised in that the both sides of described plate (1) are equipped with folding edge
(4), the both sides of said two plate (1) are all connected by folding edge (4).
Heat exchanger fin the most according to claim 3, it is characterised in that the folding edge (4) of said two plate (1) both sides is adopted
Connect by the mode of welding.
5. according to the heat exchanger fin according to any one of Claims 1 to 4, it is characterised in that described plate (1) is rectangle, institute
The cross section stating the heat exchanger channels (11) that two plates (1) are formed is elongated, and described plate (1) uses stainless steel material to make
Form.
6. the processing technology of the heat exchanger fin described in a claim 3 or 4, it is characterised in that comprise the following steps:
(1). compacting: take plate (1), utilize compacting tool set compacting plate (1), the surface of plate (1) is suppressed multiple shrinkage pool
And multiple projecting apertures (13) (12)；
(2). bending: the both sides of plate (1) are all bent；
(3). welding: two plates (1) are welded together, the bending place of one of them plate (1) side and another plate
(1) bending place, side welds, and the bending place of opposite side welds with the opposite side bending place of another plate (1),
Two plates (1) are coupled together and becomes heat exchanger fin, between two plates (1), form heat exchanger channels (11).
The processing technology of a kind of heat exchanger fin the most according to claim 6, it is characterised in that described step (1) or step (2)
Or plate (1) described in step (3) is in cuboid, described plate (1) uses stainless steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513101.8A CN106152818A (en) | 2016-06-30 | 2016-06-30 | Heat exchanger fin and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513101.8A CN106152818A (en) | 2016-06-30 | 2016-06-30 | Heat exchanger fin and processing technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106152818A true CN106152818A (en) | 2016-11-23 |
Family
ID=57350971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610513101.8A Pending CN106152818A (en) | 2016-06-30 | 2016-06-30 | Heat exchanger fin and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106152818A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024125A (en) * | 2017-05-16 | 2017-08-08 | 罗众锋 | A kind of heat transmission equipment |
| CN107101522A (en) * | 2017-05-16 | 2017-08-29 | 罗众锋 | A kind of heat-exchanger rig and manufacture method |
| CN110293368A (en) * | 2019-05-15 | 2019-10-01 | 奇鋐科技股份有限公司 | Middleware structure manufacturing method |
| CN111384324A (en) * | 2018-12-28 | 2020-07-07 | 宁德时代新能源科技股份有限公司 | battery module |
| US11219940B2 (en) | 2018-10-03 | 2022-01-11 | Asia Vital Components Co., Ltd. | Manufacturing method of middle member structure |
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| GB827063A (en) * | 1955-04-26 | 1960-02-03 | Rolls Royce | Improvements in or relating to heat-exchange apparatus |
| US4043388A (en) * | 1975-04-14 | 1977-08-23 | Deschamps Laboratories, Inc. | Thermal transfer care |
| CN1495402A (en) * | 1998-10-15 | 2004-05-12 | 株式会社荏原制作所 | plate heat exchanger |
| CN101387480A (en) * | 2008-09-05 | 2009-03-18 | 山东北辰集团华润换热设备有限公司 | Round point width flow passage fully-soldering heat exchange plate |
| CN101443619A (en) * | 2006-05-12 | 2009-05-27 | 卡朋罗兰化工设备有限公司 | Heat exchanger with welded heat exchange plates |
| CN201344756Y (en) * | 2008-12-09 | 2009-11-11 | 重庆司莫威尼热力设备有限公司 | Heat-exchange plate used for fume waste-heat recovery |
| CN102792115A (en) * | 2009-12-18 | 2012-11-21 | 米尔恰·蒂努列斯库 | Plate heat exchanger and method of manufacturing heat exchanger plates |
| CN104969021A (en) * | 2013-01-18 | 2015-10-07 | 大成普拉斯株式会社 | Heat exchanger and method for manufacturing same |
| CN205748071U (en) * | 2016-06-30 | 2016-11-30 | 广州捷玛换热设备有限公司 | Heat exchanger fin |
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| GB827063A (en) * | 1955-04-26 | 1960-02-03 | Rolls Royce | Improvements in or relating to heat-exchange apparatus |
| US4043388A (en) * | 1975-04-14 | 1977-08-23 | Deschamps Laboratories, Inc. | Thermal transfer care |
| CN1495402A (en) * | 1998-10-15 | 2004-05-12 | 株式会社荏原制作所 | plate heat exchanger |
| CN101443619A (en) * | 2006-05-12 | 2009-05-27 | 卡朋罗兰化工设备有限公司 | Heat exchanger with welded heat exchange plates |
| CN101387480A (en) * | 2008-09-05 | 2009-03-18 | 山东北辰集团华润换热设备有限公司 | Round point width flow passage fully-soldering heat exchange plate |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024125A (en) * | 2017-05-16 | 2017-08-08 | 罗众锋 | A kind of heat transmission equipment |
| CN107101522A (en) * | 2017-05-16 | 2017-08-29 | 罗众锋 | A kind of heat-exchanger rig and manufacture method |
| CN107024125B (en) * | 2017-05-16 | 2023-12-08 | 罗众锋 | Heat exchange equipment |
| US11219940B2 (en) | 2018-10-03 | 2022-01-11 | Asia Vital Components Co., Ltd. | Manufacturing method of middle member structure |
| CN111384324A (en) * | 2018-12-28 | 2020-07-07 | 宁德时代新能源科技股份有限公司 | battery module |
| EP3890052A4 (en) * | 2018-12-28 | 2022-01-26 | Contemporary Amperex Technology Co., Limited | BATTERY MODULE |
| US11335969B2 (en) | 2018-12-28 | 2022-05-17 | Contemporary Amperex Technology Co., Limited | Battery module |
| CN110293368A (en) * | 2019-05-15 | 2019-10-01 | 奇鋐科技股份有限公司 | Middleware structure manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 510000, No. 73, pen Gang Road, Nangang street, Whampoa District, Guangdong, Guangzhou two Applicant after: GUANGDONG JIEMA ENERGY SAVING TECHNOLOGY Co.,Ltd. Address before: 510000, No. 73, pen Gang Road, Nangang street, Whampoa District, Guangdong, Guangzhou two Applicant before: GUANGZHOU JIEMA HEAT EXCHANGE EQUIPMENT Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |