US Trademark Classification (Classes 01–45)

Data version: USPTO Trademark ID Manual (Acceptable Identification of Goods and Services), applying the Nice Classification, 13th edition (NCL 13-2026). Official data retrieved on 1 October 2026 and published on this site the same day: 71,543 entries (including 2,932 example entries). Term IDs, classes, English descriptions, status and effective dates follow the USPTO; Chinese terms are J&C reference translations. The "version" shown for each entry is the Nice edition under which it was added or last modified. We synchronise with the USPTO periodically; the next update is planned for January 2027. Translation revision: 13 October 2026. Reviewed Chinese reference notes are available for 6,984 entries; other substantive notes are shown in the official English.

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Class	Item No.	Chinese	English
42	042-3453	软件更新和升级	Updating and upgrading of software
42	042-3454	计算机软件平台的设计、编程和维护	Design, programming, and maintenance of computer software platforms
42	042-3455	以外包方式进行人工智能（AI）软件设计和开发	Design and development of artificial intelligence (AI) software on an outsourcing basis
42	042-3456	法证神经科学实验室服务	Forensic neuroscience laboratory services
42	042-3457	法证科学实验室服务	Forensic science laboratory services
42	042-3458	为他人设计和维护社交网站	Design and maintenance of social networking websites for others
42	042-3459	计算机软件平台设计	Design of computer software platforms
42	042-3460	计算机软件平台维护	Maintenance of computer software platforms
42	042-3461	计算机程序设计	Design of computer programs
42	042-3462	计算机程序维护	Maintenance of computer programs
42	042-3463	计算机程序编程	Programming of computer programs
42	042-3464	为他人进行市场研究用计算机软件编程	Programming of computer software for others for market research purposes
42	042-3465	为他人进行{指明用途，例如平面设计、市场研究等}用计算机软件编程	Programming of computer software for others for {indicate purpose, e.g., graphic design, market research, etc.}
42	042-3466	提供科学研究信息	Providing scientific research information
42	042-3467	提供区块链技术领域的科学研究信息	Providing scientific research information in the field of blockchain technology
42	042-3468	提供区块链技术领域的科学研究信息	Provision of scientific research information in the field of blockchain technology
42	042-3469	计算机程序的设计、编程和维护	Design, programming, and maintenance of computer programs
42	042-3470	区块链数据库托管	Hosting of blockchain databases
42	042-3471	天文学领域的研究	Research in the field of astronomy
42	042-3472	区块链技术数据库托管	Hosting of blockchain technology databases
42	042-3473	文件数字化	Digitization of documents
42	042-3474	文件数字化	Digitisation of documents
42	042-3475	为基于虚拟现实的工作协作托管计算机软件平台	Hosting computer software platforms for virtual reality-based work collaboration
42	042-3476	出租非医用超声波诊断装置	Rental of ultrasonic diagnostic apparatus, not for medical purposes
42	042-3477	出租非医用超声诊断装置	Rental of ultrasound diagnostic apparatus, not for medical purposes

US Trademark Classification

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