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	042-3154	提供临时使用基于大型语言模型（LLM）、用于语言翻译的不可下载在线软件	Providing temporary use of online non-downloadable software using large language models (LLMs) for language translation
42	042-3155	{指明领域，例如自闭症、传染病、病理学等}领域的医学研究	Medical research in the field of {specify field, e.g., autism, infectious diseases, pathology, etc.}
42	042-3156	DNA芯片研究和开发	Research and development of DNA chips
42	042-3157	燃气器具安全测试	Safety testing of gas apparatus
42	042-3158	施工制图领域的建议	Advice in the field of construction drafting
42	042-3159	半导体芯片设计	Design of semiconductor chips
42	042-3160	噪声测量服务	Noise measuring services
42	042-3161	使用多因素认证技术为{指明，例如电子商务交易、安全门禁出入等}提供用户身份验证服务	Providing user authentication services using multi-factor authentication technology for {indicate, e.g., e-commerce transactions, secure entry and exit door access, etc.}
42	042-3162	{指明领域，例如植物病理、土壤保护等}领域的农业研究	Agricultural research in the field of {specify field, e.g., plant pathologies, soil conservation, etc.}
42	042-3163	农业研究服务	Agricultural research services
42	042-3164	{指明领域，例如癌症、干细胞发育等}领域的生化研究	Biochemical research in the field of {specify field, e.g., cancer, stem cell development, etc.}
42	042-3165	{指明领域，例如细胞生物学、遗传学等}领域的生物学研究	Biological research in the field of {specify field, e.g., cellular biology, genetics, etc.}
42	042-3166	{指明领域，例如糖尿病、心脏病等}领域的生物医学研究	Biomedical research in the field of {specify field, e.g., diabetes, heart disease, etc.}
42	042-3167	{指明领域，例如表观遗传学、食品保鲜等}领域的生物技术研究	Biotechnology research in the field of {specify field, e.g., epigenetics, food preservation, etc.}
42	042-3168	{指明领域，例如有机化学、物理化学等}领域的化学研究	Chemical research in the field of {specify field, e.g., organic chemistry, physical chemistry, etc.}
42	042-3169	工程研究	Engineering research
42	042-3170	工程研究服务	Engineering research services
42	042-3171	{指明领域，例如地质年代学、海洋学等}领域的地质研究	Geological research in the field of {specify field, e.g., geochronology, oceanography, etc.}
42	042-3172	{指明领域，例如镇痛药、抗生素等}领域的药物研究	Pharmaceutical research in the field of {specify field, e.g., analgesics, antibiotics, etc.}
42	042-3173	{指明领域，例如天体物理学、量子力学等}领域的物理学研究	Physics research in the field of {specify field, e.g., astrophysics, quantum mechanics, etc.}
42	042-3174	{指明领域，例如土木、机械等}工程领域的研究	Research in the field of {specify field, e.g., civil, mechanical, etc.} engineering
42	042-3175	电气工程领域的研究	Research in the field of electrical engineering
42	042-3176	工程领域的研究	Research in the field of engineering
42	042-3177	机械工程领域的研究	Research in the field of mechanical engineering
42	042-3178	工程领域的研究服务	Research services in the field of engineering

US Trademark Classification

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