CN109583549B - Anti-counterfeiting code making and verifying method for composite two-dimensional code, watermark and miniature character - Google Patents
Anti-counterfeiting code making and verifying method for composite two-dimensional code, watermark and miniature character Download PDFInfo
- Publication number
- CN109583549B CN109583549B CN201811479670.0A CN201811479670A CN109583549B CN 109583549 B CN109583549 B CN 109583549B CN 201811479670 A CN201811479670 A CN 201811479670A CN 109583549 B CN109583549 B CN 109583549B
- Authority
- CN
- China
- Prior art keywords
- code
- counterfeiting
- miniature
- dimensional code
- watermark
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Image Processing (AREA)
- Editing Of Facsimile Originals (AREA)
Abstract
The invention relates to the technical field of anti-counterfeiting, in particular to an anti-counterfeiting code manufacturing and verifying method for a composite two-dimensional code, a watermark and a miniature character. The manufacturing method comprises the following steps: s1, generating a two-dimensional code website and logic data; s2, generating a data control logic data color code; s3, generating a digital watermark logic data code; s4, generating a micro logic data code; s5, combining S1-S4 to generate a combined database; s6, selecting the two-dimensional code type, the logic data color, the digital watermark code and the variable miniature characters according to the requirements respectively; s7, generating the selected two-dimensional code, the logic data, the digital watermark code and the miniature character into an anti-counterfeiting code of a composite two-dimensional code, a watermark and a miniature character; and S8, checking the combined anti-counterfeiting function of the anti-counterfeiting code. Compared with the prior art, the anti-counterfeiting method has the advantages that the anti-counterfeiting is carried out from various aspects such as the size of the variable miniature characters, the fonts of the variable miniature characters, the colors of the variable miniature characters, the digital watermarks, the two-dimensional code data, the colors of the two-dimensional codes and the like, and the anti-counterfeiting effect is greatly improved.
Description
Technical Field
The invention relates to the technical field of anti-counterfeiting, in particular to an anti-counterfeiting code manufacturing and verifying method for a composite two-dimensional code, a watermark and a miniature character.
Background
Common anti-counterfeiting codes on the market at present usually adopt common black-and-white two-dimensional codes or common color two-dimensional codes, and the anti-counterfeiting effect has certain limitation and cannot meet the higher anti-counterfeiting requirement.
Meanwhile, for miniature characters, the printing is usually performed directly according to preset character shapes and conventional fonts, so that the printed characters cannot achieve good effects according to different printer precisions, and sometimes are fuzzy or can only be large characters.
The anti-fake setting in market all fixes anti-fake identification main points such as miniature word, watermark in a fixed position to this position and two-dimensional code separately set up, have reduced anti-fake disguise and security effect, and separately set up to exist and can not effectual utilization effective area and print the extravagant problem of size. Meanwhile, after the common two-dimensional code is copied and forged, the authenticity can not be distinguished by effectively using other tools.
Chinese patent 2016108643802 introduces an anti-counterfeiting two-dimensional code tracing label, a generation method, and an identification method, which have the following problems, 1, the two-dimensional code therein has no color; 2. the printed pictures are stored or secondarily collected in the database, so that high requirements are made on the capacity of a server and the operation speed of the database; 3. only web page query is performed, and the query mode is single.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and designs an anti-counterfeiting code manufacturing and verifying method for a composite two-dimensional code, a watermark and a miniature character.
In order to realize the purpose, the anti-counterfeiting code manufacturing and verifying method for the composite two-dimensional code, the watermark and the miniature character comprises the two-dimensional code, the digital watermark and the variable miniature character, wherein the variable miniature character is embedded in the pattern at the triangular positioning block of the two-dimensional code, and the digital watermark is embedded in the whole image of the two-dimensional code;
the manufacturing method comprises the following steps: s1, generating a two-dimensional code website and logic data; s2, generating a data control logic data color code; s3, generating a digital watermark logic data code; s4, generating a micro logic data code; s5, combining S1-S4 to generate a combined database; s6, selecting the two-dimensional code type, the logic data color, the digital watermark code and the variable miniature characters according to the requirements respectively; s7, generating the selected two-dimensional code, the logic data, the digital watermark code and the miniature character into an anti-counterfeiting code of a composite two-dimensional code, a watermark and a miniature character; s8, checking the combined anti-counterfeiting function of the anti-counterfeiting code; the step S4 includes the following steps, S41, the physical anti-counterfeiting logic data is placed into variable miniature characters; s42, controlling the size of the variable miniature characters by using the miniature character database; s43, controlling the font of the variable miniature characters by using the miniature character database; s44 controlling the color of the variable miniature text using the miniature text database; s45, selecting proper variable micro characters with size, font and color as micro logic data codes; the step S42 includes a step S421 of selecting a proper optimal image formation and a relatively stable unit dot size according to the characteristics of the digital printer; s422, according to the size of the optimal unit ink dot of the digital printer, the area of the minimum unit square ink dot matched with the digital printer is manufactured; and S423, according to the minimum unit square ink dot of the digital printing, combining a micro character database to manufacture corresponding unit square ink dots and square characters, wherein the micro character database contains typesetting of common characters.
The selecting of the relatively stable unit dot size in step S421 includes the steps of: s4211, manufacturing a square color block with gradually changed size, wherein the square color block is 0.01-3 pounds and 0.01mm in interval between every two stages, and manufacturing a test file; s4212, printing according to the test file, checking the printing effect, and determining which pound level effect is the most complete; s4213, making a file of the miniature characters by using the size of the square color block.
The correctness of the data code is also checked between the step S4 and the step S5, if the data code is correct, the database is matched and combined, otherwise, the two-dimensional code is abandoned; the correctness of the data code is the generated two-dimensional code, the watermark and the miniature word, and whether the two-dimensional code, the watermark and the miniature word are matched with the combined database in the step S5 after the two-dimensional code, the watermark and the miniature word are extracted.
The step S8 includes the following steps: s81, checking the correctness of the file for generating the anti-counterfeiting code; s82, printing the composite anti-counterfeiting two-dimensional code on the code printing equipment; and S83, matching the printed composite anti-counterfeiting two-dimensional code with the combined database in the step S5, thereby checking the combined anti-counterfeiting function of the anti-counterfeiting code.
A method for verifying anti-counterfeiting codes of composite two-dimensional codes, watermarks and miniature characters comprises the following steps: step 1, associating an anti-counterfeiting code with a product in production; step 2, associating the anti-counterfeiting code with the product in logistics; step 3, associating the anti-counterfeiting code with the product in sales; step 4, feeding back the two-dimensional codes associated in the step 1 to the step 3 and the combined database obtained in the manufacturing process, and respectively detecting the authenticity of the digital watermark and the authenticity of the miniature characters and the colors; and 5, checking the authenticity of the anti-counterfeiting code by scanning the code after the consumer finally obtains the product, comparing the authenticity with the combined database obtained in the manufacturing process, and finally obtaining the authenticity of the two-dimension code anti-counterfeiting data and the authenticity of the two-dimension code color anti-counterfeiting.
Compared with the prior art, the scheme of compounding the variable miniature characters and the digital watermarks into the two-dimensional code is adopted, anti-counterfeiting is carried out from multiple aspects such as the size of the variable miniature characters, the font of the variable miniature characters, the color of the variable miniature characters, the digital watermarks, the two-dimensional code data and the color of the two-dimensional code, and the anti-counterfeiting effect is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a color two-dimensional code according to the present invention.
FIG. 2 is an enlarged view of the variable text in the present invention.
Fig. 3 is an enlarged view of the digital watermark in the present invention.
FIG. 4 is a flow chart of the manufacturing and verification of the present invention.
Detailed Description
The invention is further illustrated below with reference to the accompanying drawings.
As shown in fig. 1 to fig. 3, variable micro-characters are embedded in the patterns of the two-dimensional code triangular positioning block, and digital watermarks are embedded in the whole two-dimensional code.
As shown in fig. 4, the manufacturing method includes the following steps: s1, generating a two-dimensional code website and logic data; s2, generating a data control logic data color code; s3, generating a digital watermark logic data code; s4, generating a micro logic data code; s5, combining S1-S4 to generate a combined database; s6, selecting the two-dimensional code type, the logic data color, the digital watermark code and the variable miniature characters according to the requirements respectively; s7, generating the selected two-dimensional code, the logic data, the digital watermark code and the miniature character into an anti-counterfeiting code of a composite two-dimensional code, a watermark and a miniature character; s8, checking the combined anti-counterfeiting function of the anti-counterfeiting code; the step S4 includes the following steps, S41, the physical anti-counterfeiting logic data is placed into variable miniature characters; s42, controlling the size of the variable miniature characters by using the miniature character database; s43, controlling the font of the variable miniature characters by using the miniature character database; s44 controlling the color of the variable miniature text using the miniature text database; s45, selecting proper variable micro characters with size, font and color as micro logic data codes; the step S42 includes a step S421 of selecting a proper optimal image formation and a relatively stable unit dot size according to the characteristics of the digital printer; s422, according to the size of the optimal unit ink dot of the digital printer, the area of the minimum unit square ink dot matched with the digital printer is manufactured; and S423, according to the minimum unit square ink dot of the digital printing, combining a micro character database to manufacture corresponding unit square ink dots and square characters, wherein the micro character database contains typesetting of common characters.
The selecting of the relatively stable unit dot size in step S421 includes the steps of: s4211, manufacturing a square color block with gradually changed size, wherein the square color block is 0.01-3 pounds and 0.01mm in interval between every two stages, and manufacturing a test file; s4212, printing according to the test file, checking the printing effect, and determining which pound level effect is the most complete; s4213, making a file of the miniature characters by using the size of the square color block.
The correctness of the data code is also checked between the step S4 and the step S5, if the data code is correct, the database is matched and combined, otherwise, the two-dimensional code is abandoned; the correctness of the data code is the generated two-dimensional code, the watermark and the miniature word, and whether the two-dimensional code, the watermark and the miniature word are matched with the combined database in the step S5 after the two-dimensional code, the watermark and the miniature word are extracted.
The step S8 includes the following steps: s81, checking the correctness of the file for generating the anti-counterfeiting code; s82, printing the composite anti-counterfeiting two-dimensional code on the code printing equipment; and S83, matching the printed composite anti-counterfeiting two-dimensional code with the combined database in the step S5, thereby checking the combined anti-counterfeiting function of the anti-counterfeiting code.
A method for verifying anti-counterfeiting codes of composite two-dimensional codes, watermarks and miniature characters comprises the following steps: step 1, associating an anti-counterfeiting code with a product in production; step 2, associating the anti-counterfeiting code with the product in logistics; step 3, associating the anti-counterfeiting code with the product in sales; step 4, feeding back the two-dimensional codes associated in the step 1 to the step 3 and the combined database obtained in the manufacturing process, and respectively detecting the authenticity of the digital watermark and the authenticity of the miniature characters and the colors; and 5, checking the authenticity of the anti-counterfeiting code by scanning the code after the consumer finally obtains the product, comparing the authenticity with the combined database obtained in the manufacturing process, and finally obtaining a one-line anti-counterfeiting identification result with the two-dimension code anti-counterfeiting data authenticity and the two-dimension code color anti-counterfeiting authenticity consistent. Finally, if the generated two-dimensional code is generated, the merchant also has professional two-line physical anti-counterfeiting logic data and color variable micro characters as tests, and the manufacturer also has more professional three-line digital watermark anti-counterfeiting check.
Claims (5)
1. An anti-counterfeiting code manufacturing and verifying method for a composite two-dimensional code, a watermark and a miniature character comprises the two-dimensional code, a digital watermark and variable miniature characters, wherein the variable miniature characters are embedded in patterns at triangular positioning blocks of the two-dimensional code, and the digital watermark is embedded in the whole image of the two-dimensional code;
the manufacturing method comprises the following steps: s1, generating a two-dimensional code website and logic data; s2, generating a data control logic data color code; s3, generating a digital watermark logic data code; s4, generating a micro logic data code; s5, combining S1-S4 to generate a combined database; s6, selecting the two-dimensional code type, the logic data color, the digital watermark code and the variable miniature characters according to the requirements respectively; s7, generating the selected two-dimensional code, the logic data, the digital watermark code and the miniature character into an anti-counterfeiting code of a composite two-dimensional code, a watermark and a miniature character; s8, checking the combined anti-counterfeiting function of the anti-counterfeiting code; the step S4 includes the following steps, S41, the physical anti-counterfeiting logic data is placed into variable miniature characters; s42, controlling the size of the variable miniature characters by using the miniature character database; s43, controlling the font of the variable miniature characters by using the miniature character database; s44 controlling the color of the variable miniature text using the miniature text database; s45, selecting proper variable micro characters with size, font and color as micro logic data codes; the step S42 includes a step S421 of selecting a proper optimal image formation and a relatively stable unit dot size according to the characteristics of the digital printer; s422, according to the size of the optimal unit ink dot of the digital printer, the area of the minimum unit square ink dot matched with the digital printer is manufactured; and S423, according to the minimum unit square ink dot of the digital printing, combining a micro character database to manufacture corresponding unit square ink dots and square characters, wherein the micro character database contains typesetting of common characters.
2. The method as claimed in claim 1, wherein the step of selecting relatively stable unit dot size in step S421 includes the steps of: s4211, manufacturing a square color block with gradually changed size, wherein the square color block is 0.01-3 pounds and 0.01mm in interval between every two stages, and manufacturing a test file; s4212, printing according to the test file, checking the printing effect, and determining which pound level effect is the most complete; s4213, making a file of the miniature characters by using the size of the square color block.
3. The method for making and verifying the anti-counterfeiting code of the composite two-dimensional code, the watermark and the micro-word as claimed in claim 1, wherein the method comprises the following steps: the correctness of the data code is also checked between the step S4 and the step S5, if the data code is correct, the database is matched and combined, otherwise, the two-dimensional code is abandoned; the correctness of the data code is the generated two-dimensional code, the watermark and the miniature word, and whether the two-dimensional code, the watermark and the miniature word are matched with the combined database in the step S5 after the two-dimensional code, the watermark and the miniature word are extracted.
4. The method for making and verifying the anti-counterfeit code of the composite two-dimensional code, the watermark and the micro-word as claimed in claim 1, wherein the step S8 comprises the steps of: s81, checking the correctness of the file for generating the anti-counterfeiting code; s82, printing the composite anti-counterfeiting two-dimensional code on the code printing equipment; and S83, matching the printed composite anti-counterfeiting two-dimensional code with the combined database in the step S5, thereby checking the combined anti-counterfeiting function of the anti-counterfeiting code.
5. A method for verifying the anti-counterfeit code of the composite two-dimensional code, the watermark and the miniature word according to claim 1, comprising the steps of: step 1, associating an anti-counterfeiting code with a product in production; step 2, associating the anti-counterfeiting code with the product in logistics; step 3, associating the anti-counterfeiting code with the product in sales; step 4, feeding back the two-dimensional codes associated in the step 1 to the step 3 and the combined database obtained in the manufacturing process, and respectively detecting the authenticity of the digital watermark and the authenticity of the miniature characters and the colors; and 5, checking the authenticity of the anti-counterfeiting code by scanning the code after the consumer finally obtains the product, comparing the authenticity with the combined database obtained in the manufacturing process, and finally obtaining the authenticity of the two-dimension code anti-counterfeiting data and the authenticity of the two-dimension code color anti-counterfeiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479670.0A CN109583549B (en) | 2018-12-05 | 2018-12-05 | Anti-counterfeiting code making and verifying method for composite two-dimensional code, watermark and miniature character |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479670.0A CN109583549B (en) | 2018-12-05 | 2018-12-05 | Anti-counterfeiting code making and verifying method for composite two-dimensional code, watermark and miniature character |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109583549A CN109583549A (en) | 2019-04-05 |
| CN109583549B true CN109583549B (en) | 2022-03-22 |
Family
ID=65927349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811479670.0A Active CN109583549B (en) | 2018-12-05 | 2018-12-05 | Anti-counterfeiting code making and verifying method for composite two-dimensional code, watermark and miniature character |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109583549B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113033745B (en) * | 2021-03-25 | 2022-03-04 | 深圳市智码通科技有限公司 | Method for generating character two-dimensional code |
| CN114298259A (en) * | 2022-01-11 | 2022-04-08 | 陈永祥 | Anti-counterfeiting tracing method based on two-dimensional code and bar code |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102663600A (en) * | 2012-01-17 | 2012-09-12 | 付强 | Anti-counterfeiting system based on digital watermarks and barcodes, anti-counterfeiting method for anti-counterfeiting system and application of anti-counterfeiting system |
| CN103020683A (en) * | 2012-12-04 | 2013-04-03 | 上海伊诺尔印务有限公司 | Combined anti-counterfeiting method |
| CN105389708A (en) * | 2015-11-05 | 2016-03-09 | 成都天星印务股份有限公司 | Anti-counterfeiting method based on combination of digital watermark and two-dimensional code and verification method thereof |
| CN105740928A (en) * | 2016-01-27 | 2016-07-06 | 上海尚源信息技术有限公司 | Anti-counterfeiting method for two-dimensional code picture |
| CN106205362A (en) * | 2016-08-31 | 2016-12-07 | 河南省卫群科技发展有限公司 | Holographic variable image Quick Response Code is traced to the source anti-counterfeiting mark and system |
| CN206877593U (en) * | 2017-06-27 | 2018-01-12 | 无锡徐达防伪科技有限公司 | The anti-counterfeiting mark that a kind of variable micro digital of cover type is combined with Quick Response Code |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6804376B2 (en) * | 1998-01-20 | 2004-10-12 | Digimarc Corporation | Equipment employing watermark-based authentication function |
| US8224019B2 (en) * | 2007-05-22 | 2012-07-17 | Xerox Corporation | Embedding information in document blank space |
-
2018
- 2018-12-05 CN CN201811479670.0A patent/CN109583549B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102663600A (en) * | 2012-01-17 | 2012-09-12 | 付强 | Anti-counterfeiting system based on digital watermarks and barcodes, anti-counterfeiting method for anti-counterfeiting system and application of anti-counterfeiting system |
| CN103020683A (en) * | 2012-12-04 | 2013-04-03 | 上海伊诺尔印务有限公司 | Combined anti-counterfeiting method |
| CN105389708A (en) * | 2015-11-05 | 2016-03-09 | 成都天星印务股份有限公司 | Anti-counterfeiting method based on combination of digital watermark and two-dimensional code and verification method thereof |
| CN105740928A (en) * | 2016-01-27 | 2016-07-06 | 上海尚源信息技术有限公司 | Anti-counterfeiting method for two-dimensional code picture |
| CN106205362A (en) * | 2016-08-31 | 2016-12-07 | 河南省卫群科技发展有限公司 | Holographic variable image Quick Response Code is traced to the source anti-counterfeiting mark and system |
| CN206877593U (en) * | 2017-06-27 | 2018-01-12 | 无锡徐达防伪科技有限公司 | The anti-counterfeiting mark that a kind of variable micro digital of cover type is combined with Quick Response Code |
Non-Patent Citations (3)
| Title |
|---|
| A High Density Colored 2D-Barcode CQR Code-9;Max E. Vizcarra Melgar et al.;《IEEE Xplore》;20170116;全文 * |
| 想知道"二维码"的发展趋势吗？;杨文玺;《数字印刷》;20180831;全文 * |
| 数字印刷技术在标签印刷领域的应用;杨文玺;《数字印刷》;20161231;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109583549A (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108764420B (en) | Two-dimensional code, coding and identifying method thereof and product with anti-counterfeiting function | |
| EP0411044A1 (en) | Label generation apparatus | |
| CN109583549B (en) | Anti-counterfeiting code making and verifying method for composite two-dimensional code, watermark and miniature character | |
| JP2008071024A (en) | Bar code image generation device, bar code image reader, and bar code image generation/reading system | |
| CN106372698A (en) | Multidimensional anti-counterfeiting label and anti-counterfeiting verification method thereof | |
| CN106650545A (en) | Anti-counterfeiting two-dimensional code tracing label and the method for generating and identifying the same | |
| CN115953175B (en) | Multiple anti-counterfeiting method, system, equipment and storage medium based on surface layer identification | |
| CN103955730A (en) | Manufacturing method of anti-counterfeiting photo-etched two-dimensional code labels | |
| CN103093173A (en) | Anti-fake method, anti-fake label and label manufacture method | |
| JP5353351B2 (en) | Stamping device and stamp information management system | |
| KR101573857B1 (en) | A Printed Document Having Function Of Preventing From Forging/Manipulating, The Method Thereof and The Inspecting Method Of The Printed Document | |
| CN105374284B (en) | The manufacturing method of multilayered color-forming structural material, method for anti-counterfeit | |
| CN204833310U (en) | Multidimension antifalsification label | |
| JP2012063993A (en) | Image processing system, control method thereof, and program | |
| CN103279784A (en) | Two-dimensional anti-counterfeit label and producing method thereof | |
| JP6127899B2 (en) | Image processing apparatus and image processing program | |
| KR20160027947A (en) | A Document Having Printed Means Of Preventing From Forging/Manipulating | |
| CN114997350A (en) | Method and system for identifying authenticity of article | |
| CN102024378A (en) | Method for hiding anti-counterfeiting data in bar codes | |
| KR101852930B1 (en) | Apparatus for generating security documents and readable Apparatus for it | |
| KR20150116428A (en) | A Printed Document Having Function Of Preventing From Forging/Manipulating, The Method Thereof and The Inspecting Method Of The Printed Document | |
| JP7141659B2 (en) | Security booklet and its creation method | |
| CN104375846B (en) | The production method and its generation device of ePrint Archive | |
| CN109376826A (en) | The dimension code anti-counterfeit method of character image complementation identification | |
| CN111400741B (en) | Hidden information encryption method based on lattice arrangement extensible style |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |