4220 Computer programming and related services (Class 42 similar group): items and numbers

Notes on similar group 4220

Practice notes (J&C)

This group is software design, software as a service (SaaS), platform as a service (PaaS), cloud computing, website hosting, data storage, information-technology consultancy, artificial intelligence as a service (AIaaS, added in 2026), etc.; there are no official notes.

Note for software businesses: this group is services, downloadable software is in 0901 of Class 9, online-advertising platforms are in Class 35, and communications transmission is in Class 38; research in the field of artificial intelligence is now in Part (1) of 4209 (practical tip).

Applies to the 2026 edition · Published 2026-10-09 · Reviewed 2026-10-09

Data version: CNIPA Table of Similar Goods and Services, 2026 text (based on the 13th edition of the Nice Classification, NCL 13-2026, in force since 1 January 2026). Chinese terms, groups and numbers follow the official text; English and Spanish terms are taken from WIPO, while CNIPA-specific items (C numbers) carry reference translations, whose English was fully revised on 8 October 2026. NCL 13-2027 enters into force on 1 January 2027. Selected reference translations were revised on 13 October 2026.

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Class	Group	Item No.	Chinese	English
42	4220	420238	手机解锁	unlocking of mobile telephones / unlocking of cell phones
42	4220	420239	为检测故障监控计算机系统	monitoring of computer systems to detect breakdowns
42	4220	420240	为他人创建和设计网络信息索引（信息技术服务）	creating and designing website-based indexes of information for others [information technology services]
42	4220	420241	互联网安全咨询	internet security consultancy
42	4220	420242	数据安全咨询	data security consultancy
42	4220	420243	数据加密服务	data encryption services
42	4220	420244	为侦测非授权访问和数据外泄而进行的计算机系统监控	monitoring of computer systems for detecting unauthorized access or data breach
42	4220	420245	为侦测网络身份盗用而进行的个人身份信息电子监控	electronic monitoring of personally identifying information to detect identity theft via the internet
42	4220	420246	为侦测网络诈骗而进行的信用卡活动电子监控	electronic monitoring of credit card activity to detect fraud via the internet
42	4220	420247	软件出版框架下的软件开发	software development in the framework of software publishing
42	4220	420248	平台即服务（PaaS）	platform as a service [PaaS]
42	4220	420249	计算机平台的开发	development of computer platforms
42	4220	420260	通过技术手段为电子商务交易进行用户认证服务	user authentication services using technology for e-commerce transactions
42	4220	420261	通过单点登录技术为在线应用软件进行用户认证服务	user authentication services using single sign-on technology for online software applications
42	4220	420262	编写计算机代码	writing of computer code
42	4220	420263	电信网络安全咨询	telecommunication network security consultancy
42	4220	420267	计算机模拟模型的设计	design of computer-simulated models
42	4220	420271	投影映射视频用计算机图形设计	computer graphic design for video projection mapping
42	4220	420272	计算机犯罪领域的数字取证调查	digital forensic investigations in the field of computer crimes
42	4220	420273	关于数字化转型的技术咨询服务	technological consultancy services for digital transformation
42	4220	420274	数据中心设施出租	rental of data centre facilities / rental of data center facilities
42	4220	420279	使用区块链技术的用户认证服务	user authentication services using blockchain technology
42	4220	420282	视频游戏和计算机游戏的开发	development of video and computer games
42	4220	420283	量子计算	quantum computing
42	4220	420285	用于数据处理的计算机编程服务	computer programming services for data processing