Please provide links to your website where the requested information can be found in English, French, or Spanish. Alternately, you may provide text responses instead of URLs if desired. If the information is not available on your website in an ATR language, then please provide text.
URLs in responses should meet the following requirements:
Information on the following topics is desired:
CNIPA has always adhered to a user-centered approach, with the goal of continuously improving examination quality and efficiency, and has actively explored the application of technologies such as large models and AI agents in the field of patent examination, achieving positive progress in addressing key and difficult operational issues. In July 2025, we deployed multiple large models within our systems and completed the construction of an AI Capability Enhancement Center, providing examiners with AI tools for three core competencies:
- For search capability, we specifically trained a search large model. For invention and utility model patent applications, by deeply integrating the large language model with the semantic search engine, the search system now combines traditional "feature recognition" with AI's "invention understanding" capability, significantly enhancing intelligent retrieval performance.
- For technical comprehension capability, we provide an AI Academic Assistant service. Examiners can conduct search and real-time Q&A based on academic journals through natural language dialogue, enabling them to quickly understand technical backgrounds, grasp technological development trends, and improve the relevance of their learning.
- For legal application capability, we developed an AI Legal Assistant that integrates data resources such as laws and regulations, typical cases, and training courses to build a specialized knowledge base. Leveraging the intelligent Q&A and logical reasoning capabilities of large models, it enables legal provision retrieval, case analysis, and training Q&A functions, providing examiners with round-the-clock "mentor" services and offering legal support for making sound examination conclusions.
In 2026, CNIPA's new projects: Large-model applications, system password security upgrades, implementation of WIPO Standard ST.92, equipment updates, and other related matters.
Useful links to CNIPA official annual reports and statistical information:
1. Annual report URL: https://english.cnipa.gov.cn/col/col336/index.html
2. Statistics URL: https://english.cnipa.gov.cn/col/col2942/index.html
Information on the following topics is desired:
For applicants, CNIPA has provided help documentation on the homepage of the Patent Business Processing System, covering: patent reexamination and invalidation, the Patent Cooperation Treaty (PCT), international design applications, the Patent Prosecution Highway (PPH), frequently asked questions, and system user manuals. The URL is:
https://cponline.cnipa.gov.cn/GzfwYwblGlwhTMVC/GzfwYwblGlwhT/selectCjwtMore.
We also provide a tool download channel for applicants to download the Patent Business Processing System client, the Word-to-XML editor, patent electronic application data standards and batch interfaces, the WIPO Standard ST.26 for nucleotide and amino acid sequence listings along with related tools and materials. The URL is:
https://cponline.cnipa.gov.cn/GzfwYwblGlwhTMVC/GzfwYwblGlwhT/selectxggj.
Regarding the acquisition of application documents: For the general public, CNIPA provides China and Multi-Country Patent Examination Information Inquiry services. Chinese users can obtain application documents for their cases through this service. International users can use the international version to log in and obtain application documents for their cases.
With respect to classification: For the International Patent Classification (IPC) system, our administration has introduced machine classification technology.
Information on the following topics is desired:
The principal publications of CNIPA comprise three types of individual publications: Invention Patent Application Pbulications, Invention Patent Grant Publications, and Utility Model Patent Grant Publications. Each publication contains a front page (bibliographic data, abstract and abstract drawing(s))s, claims. the specification, and drawings of the specification. The publications are available online at epub.cnipa.gov.cn.
Our official gazettes comprise the Patent Gazette for Inventions and the Patent Gazette for Utility Models. They are published twice weekly (Tuesday and Fridays) and are available online at epub.cnipa.gov.cn.
In terms of patent information sources for examiners, the database of our patent search system contains patent data from over one hundred countries, regions, and international organizations. In addition to bibliographic data, the system also provides full-text images, full-text documents, citation data, patent families, legal status, and other patent information. Among these, Chinese patent data is updated twice weekly, while data from other sources is updated regularly or irregularly depending on availability.
In terms of patent information sources for external users, CNIPA provides:
1. Patent Search and Analysis Service: Freely accessible, covering global patent data. Access URL: https://pss-system.cponline.cnipa.gov.cn. The general public can freely search and browse all patent data in the system. Bibliographic data, full-image data, and full-text document data are also available for free download.
2. China and Multi-Country Patent Examination Information Inquiry Service: Freely accessible.
- Domestic access URL: https://cpquery.cnipa.gov.cn
- International access URL: https://cpquery.cponline.cnipa.gov.cn/user/login
Regarding patent legal status information: Our patent legal status data covers over 50 types of legal status for invention patents, utility models, and designs, in XML format. In 2025, approximately 10 million new legal status records were added for Chinese invention, utility model, and design patents. Chinese users can check the legal status of cases through the China and Multi-Country Patent Examination Information Inquiry Service. International users can log in via the international version to check the legal status of their cases.
Information on the following topics is desired:
In 2021 and 2023, CNIPA respectively launched the Intelligent Search and Intelligent Examination systems (hereinafter referred to as the "i-system"). In July 2025, we further released the Search Large Model, AI Academic Assistant, and AI Legal Assistant, providing strong support for patent examination work.
Horizontally, the i-system covers various patent business types including inventions, utility models, and PCT international applications. Vertically, it runs through the entire workflow, from filing, acceptance, examination, reexamination, to invalidation. Leveraging modern information technologies such as artificial intelligence, big data, cloud computing, and microservices, and focusing on intelligent assisted examination and automated search assistance, the system has deeply optimized core functions including PCT international carry-over validation rules, international search reports, utility model evaluation reports, application quality monitoring, and refined examination cycle management. This has comprehensively enhanced the centralization, intelligence, and convenience of transaction processing, patent examination, and public services. (For details on the Search Large Model, AI Academic Assistant, and AI Legal Assistant, please refer to Question 1.)
Regarding the electronic search database: Our patent search system contains patent data from over one hundred countries, regions, and international organizations. In addition to bibliographic data, the system also provides full-images, full-text documents, citation data, patent families, legal status, and other patent information. Chinese patent data is updated twice weekly, while data from other sources is updated regularly or irregularly depending on availability. In 2025, our internal database added approximately 7 million new full-text searchable Chinese and foreign patent documents in XML format. We also provide examiners with search services for non-patent resources on the internet through an Internet resource search platform, covering multiple domestic and international resources.
Regarding the administrative management system: The Patent Business Processing System provides comprehensive online administrative services for registration, filing, and fee payment throughout the entire process:
- It enables online handling of various patent ownership and status registration matters, including patent pledge registration, patent implementation license contract recordal, patent open license declaration registration, bibliographic data change registration, and patent right preservation registration. Registration results are reflected in real-time updates to the patent legal status.
- It supports invention patent, utility model patent, PCT international phase, and PCT national phase entry applications. Upon successful registration and submission, an electronic filing receipt is automatically generated, and the application synchronously enters the patent examination process.
- It supports 24/7 online fee payment, with payment results fed back in real time and fee information automatically synchronized to the patent examination system. All types of official patent fees can be paid, including application fees, annuities, reexamination and invalidation request fees, and priority claim fees. Supporting functions include electronic payment invoice management, fee inquiry, reference number management, and suspense account handling. Upon completion of payment, electronic fiscal-compliant invoices are automatically generated, with query and download functions provided.
- It supports digital certificate signing for electronic filing users. The system provides download services for official notices and patent certificates, along with online verification of electronically signed documents.
Regarding hardware: CNIPA has adopted a cloud computing infrastructure, organically integrating information technologies such as cloud computing, big data, and artificial intelligence with patent examination business scenarios to support the digital and intelligent development of business processes.
Information on the following topics is desired:
Public users can access patent information through the Patent Search and Analysis Service (with the interface supporting 9 languages) and the China and Multi-Country Patent Examination Information Inquiry Service within the Patent Business Processing System (with the interface supporting 8 languages).
Information on the following topics is desired:
In 2025, CNIPA continued to exchange PCT-related data and documents in machine-readable form with WIPO through M2M (Machine-to-Machine) interfaces. Concurrently, we are conducting research and assessment regarding business requirements and system upgrades for the implementation of WIPO ST.92.
In 2025, CNIPA actively carried out work related to the implementation of the new regulations on PCT minimum documentation. We have conducted testing on the PCT minimum documentation repositories of 15 national/regional/organizational intellectual property offices, making technical preparations for implementation.
Note: For each Standard listed below, please enter one of the following values:
"Fully implemented"
The WIPO Standard has been implemented in a manner compliant or compatible with the Standard.
"Partially implemented"
The WIPO Standard has been implemented in part. The Office practice aligns with some, but not all, requirements of the Standard.
"On implementation phase"
The decision to implement the WIPO Standard has been made and it is currently being deployed, configured, or integrated into systems and workflows.
"Planning to implement"
The decision to implement the WIPO Standard has been made; planning activities (resource allocation, timeline development, technical design) are underway before actual implementation begins.
"On assessment phase"
The WIPO Standard is under active evaluation to determine its feasibility, technical requirements, costs, benefits, and alignment with organizational needs before making an implementation decision.
"No plan to implement"
The WIPO Standard has been reviewed and there is currently no intention or plan to implement it.
WIPO Standard ST.1: Recommendation concerning the minimum data elements required to uniquely identify a patent document
Fully implemented
WIPO Standard ST.2: Standard manner for designating calendar dates by using the Gregorian calendar
Fully implemented
WIPO Standard ST.3: Recommended standard on two-letter codes for the representation of states, other entities and intergovernmental organizations
Fully implemented
WIPO Standard ST.6: Recommendation for the numbering of published patent documents
Partially implemented
WIPO Standard ST.8: Standard recording of international patent classification (IPC) symbols on machine-readable records
Partially implemented
WIPO Standard ST.9: Recommendation concerning bibliographic data on and relating to patents and SPCs
Fully implemented
WIPO Standard ST.10: Published patent documents
Partially implemented
WIPO Standard ST.10/A: Format (margins, size) of patent documents
Partially implemented
WIPO Standard ST.10/B: Layout of bibliographic data components
Partially implemented
WIPO Standard ST.10/C: Presentation of bibliographic data components
Partially implemented
WIPO Standard ST.10/D: Guidelines on physical characteristics of patent documents particularly relevant to reproducibility and legibility of such documents
Partially implemented
WIPO Standard ST.11: Recommendation on the minimum of indexes to be inserted in patent gazettes or published in association with patent gazettes
Partially implemented
WIPO Standard ST.12: Guidelines for the preparation of abstracts of patent documents
Partially implemented
WIPO Standard ST.12/A: General guidelines for the preparation of abstracts of patent documents
Partially implemented
WIPO Standard ST.12/B: Guidelines for the preparation of categorized patent abstract
Partially implemented
WIPO Standard ST.12/C: Guidelines for the physical characteristics of separately published abstracts in selective dissemination of information (SDI) presented in the form of card files
Partially implemented
WIPO Standard ST.13: Recommendation for the numbering of applications for industrial property rights (IPRs)
Partially implemented
WIPO Standard ST.14: Recommendation for the inclusion of references cited in patent documents
Partially implemented
WIPO Standard ST.15: Guidelines for the wording of titles of inventions in patent documents
Partially implemented
WIPO Standard ST.16: Recommended standard code for the identification of different kinds of patent documents
Partially implemented
WIPO Standard ST.17: Recommendation for the coding of headings of announcements made in official gazettes
No plan to implement
WIPO Standard ST.18: Recommendation concerning patent gazettes and other patent announcement journals
Partially implemented
WIPO Standard ST.19: Recommendation for the publication of indexes issued yearly/half-yearly/quarterly by industrial property offices
No plan to implement
WIPO Standard ST.20: Recommendations for the preparation of name indexes to patent documents
No plan to implement
WIPO Standard ST.21: Recommendation concerning the reduction of volume of priority documents as filed with industrial property offices
No plan to implement
WIPO Standard ST.22: Recommendation for the authoring of patent applications for the purpose of facilitating optical character recognition (OCR)
Partially implemented
WIPO Standard ST.25: Standard for the presentation of nucleotide and amino acid sequence listings in patent applications
Fully implemented
It has been replaced by ST.26.
WIPO Standard ST.26: Recommended standard for the presentation of nucleotide and amino acid sequence listings using XML (extensible markup language)
Fully implemented
WIPO Standard ST.27: Recommendation for the exchange of patent legal status data
Fully implemented
WIPO Standard ST.31: Recommended standard coded character sets for the exchange of machine-readable records of patent documents
No plan to implement
WIPO Standard ST.32: Recommendation for the markup of patent documents using SGML (standard generalized markup language)
Partially implemented
WIPO Standard ST.33: Recommended standard format for data exchange of facsimile information of patent documents
No plan to implement
WIPO Standard ST.34: Recommendation concerning the recording of application numbers in electronic form for the exchange of bibliographic data
No plan to implement
WIPO Standard ST.35: Recommended standard format for data exchange of mixed-mode published patent document information on reel-to-reel and IBM 3480/90 cartridge tapes
No plan to implement
WIPO Standard ST.36: Recommendation for the processing of patent information using XML (extensible markup language)
Partially implemented
WIPO Standard ST.37: Recommendation for an authority file of published patent documents
Fully implemented
WIPO Standard ST.40: Recommendation concerning making facsimile images of patent documents available on CD-ROM
No plan to implement
WIPO Standard ST.50: Guidelines for issuing corrections, alterations and supplements relating to patent information
Partially implemented
WIPO Standard ST.90: Recommendation for processing and communicating intellectual property data using web APIs (Application Programming Interfaces)
Fully implemented
WIPO Standard ST.91: Recommendations on digital three-dimensional (3D) models and 3D images
No plan to implement
WIPO Standard ST.92: Recommendations on the data package format for the electronic exchange of priority documents
On implementation phase
WIPO Standard ST.96: Recommendation for the processing of intellectual property information using XML (extensible markup language)
Partial implemented
WIPO Standard ST.97: Recommendation for processing of intellectual property data using JSON
No plan to implement
Please include any other relevant information here.
Please insert links to specific pages on your website where the above information is available in English, French, or Spanish. See other requirements above. You may also provide text instead of links.
1.Classification is allotting one or more classification symbols (e.g., IPC symbols) to a patent application, either before or during search and examination, which symbols are then published with the patent application.
2. Preclassification is allotting an initial broad classification symbol (e.g., IPC class or subclass, or administrative unit) to a patent application, using human or automated means for internal administrative purposes (e.g., routing an application to the appropriate examiner). Usually preclassification is applied by the administration of an office.
3. Reclassification is the reconsideration and usually the replacement of one or more previously allotted classification symbols to a patent document, following a revision and the entry into force of a new version of the Classification system (e.g., the IPC). The new symbols are available on patent databases.
<script>
jQuery(document).ready(function() {
jQuery(".wiki-content a").attr("target", "_blank");
});
</script> |