Home> Systems/Procedures> Trademarks> Overview> Classification> International Cooperation on Classification of Goods and Services> Publication of Japan-China-Korea Concordance List of Similar Group Codes (Corresponding to Nice Classification 13th edition, version 2026 (NCL13-2026))
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March 2026
Trademark Division
The Japan Patent Office (JPO), the China National Intellectual Property Administration (CNIPA), and the Ministry of Intellectual Property (MOIP) of the Republic of Korea are working on a cooperative project to compile a concordance list that indicates the corresponding relationships among the respective similar group codes used for trademark examination at the JPO, the CNIPA, and the MOIP, based on a trilateral agreement signed by the three offices.
Similar group codes are the codes assigned to goods and services that are presumed to be similar to each other in trademark examination. The project aims to improve the predictability of examination results by encouraging users who file trademark applications with the JPO, the CNIPA, or the MOIP to utilize the concordance list when searching for prior trademarks.
As a result of the JPO-CNIPA-MOIP cooperation, the JPO is pleased to publish the Japan-China-Korea Concordance List of Similar Group Codes corresponding to the Nice Classification, 13th edition, version 2026 (NCL(13-2026)), which came into effect on January 1, 2026.
The JPO, the CNIPA, and the MOIP will continue to advance this project to further improve user convenience.
Reference : “Similar Group Code” used at the JPO.
[Last updated 30 March 2026]
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Contact |
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Japan Patent Office Trademark Division E-mail: PA1T90@jpo.go.jp |