| Patent application and all filed documents | Required | Article 3 requires every document filed under the Patent Law and its Implementing Regulations to be in Chinese. The same article adds two obligations that are unusual to see written into law: where the state has set standardised scientific and technical terms, those standardised terms must be used; and where a foreign personal name, place name or technical term has no settled Chinese rendering, the original must be noted alongside it. | Implementing Regulations of the Patent Law of the People’s Republic of China (2023 revision), Article 3 | www.cnipa.gov.cn2026-10-11verifiable |
| Foreign-language certificates and supporting documents | To verify | Under Article 3, the patent administration department may require Chinese translations of foreign-language certificates or supporting documents within a specified period. If a required translation is not supplied in time, the document is treated as not submitted. Confirm the procedure and any available remedies with patent counsel. Conditional requirement: applies when a translation is required under the procedure, not automatically to every foreign-language exhibit. | Implementing Regulations of the Patent Law (2023 revision), Article 3, paragraph 2 | www.cnipa.gov.cn2026-10-11verifiable |
| Product markings and warnings on shipped goods | Required | For semiconductor products shipped as goods rather than filed as applications, Article 27 of the Product Quality Law applies: the product name, manufacturer name and address must be marked in Chinese; specifications, grade and principal constituent names and contents must be marked in Chinese where the product characteristics require it; and products that may endanger persons or property if used improperly must carry warning marks or Chinese warning instructions. | Product Quality Law of the People’s Republic of China (as amended 29 December 2018), Article 27, items (2), (3) and (5) | www.cnipa.gov.cn2026-10-11verifiable |
| Datasheets and design kit documentation | To verify | No general provision was located requiring a datasheet or a design kit to be delivered in Chinese. The exposure here is different in kind: these documents are the source from which claim language and specification conditions are later drawn, so a rendering decision made once in a datasheet propagates into filings where Article 3 does bind. Treating them as unregulated therefore understates what they determine. Recorded as a negative finding: absence of a located provision is not proof that none exists. | No specific provision located | www.cnipa.gov.cn2026-09-04portal only |