A trademark registration number is the unique identification number assigned by the CNIPA to each trademark. After the application is filed, this number is called the application number; once the registration is approved, it is called the registration number. The two are the same number—one trademark, one number, unchanged for life.
Numbering Rules and Uniqueness
Registration numbers are assigned uniformly by the CNIPA in the order applications are filed, with one number per application. Even if a trademark goes through refusal, review, opposition, or invalidation procedures, the number never changes; no new number is issued after renewal, change, or assignment, ensuring the continuity and traceability of the trademark archive. Each number corresponds to a complete trademark archive, including the application documents, examination records, publication information, and all subsequent procedures.
Relationship Between the Application Number and the Registration Number
The two are the same number at different stages: before the trademark is approved for registration, it is customarily called the application number in practice; after the registration publication is issued, the same number is called the registration number. Understanding this prevents the mistaken belief that two numbers exist when searching or handling procedures, and it also explains why the registration number on the certificate is identical to the application number on the original notice of acceptance.
Main Functions
- Search and inquiry: on the CNIPA Trademark Office website, the registration number can be used to look up trademark status, publication information, and procedural records—the most precise search method;
- Procedural handling: all subsequent applications such as renewal, change, assignment, license recordation, and certificate reissue require the registration number;
- Proof of rights: registration certificates, administrative decisions, judgments, and recordation documents all refer to the specific trademark by its registration number;
- Archive management: a corporate trademark ledger should use the registration number as the primary key, linking the certificate, deadlines, evidence of use, and all other materials.
Numbers Easily Confused
- Application number: the same number as the registration number at a different stage, not a separate number;
- Acceptance notice number or barcode: merely procedural identifiers that cannot replace the registration number for handling business;
- Madrid international registration number: belongs to the Madrid international registration system and is separate from domestic registration numbers; trademarks designating China through Madrid receive an international registration number rather than a domestic application serial number.
Practical Tips
When providing trademark information externally, use the registration number first to avoid ambiguity from identical or similar trademark names. Recording the registration number in contracts, invoices, packaging, and promotional materials facilitates internal management and helps build a complete, coherent chain of use evidence, which plays a role in non-use cancellation defenses and enforcement claims. Enterprises holding many trademarks can also use registration numbers to map trademarks to products, channels, and regions, forming a refined brand asset map that provides data support for subsequent licensing, assignment, and enforcement planning.
The application of these concepts in practice involves nuances. Before proceeding, you may consult a recorded agent through MyTMBee for targeted analysis.