4209 Scientific and technological research services (Class 42 similar group): items and numbers

Notes on similar group 4209

Official notes (CNIPA Table of Similar Goods and Services, 2026 text; J&C reference translation)

1. The services in the different parts of this similar group are not similar to one another;

2. Part (1) is cross-searched with the accepted service "technical consultancy in the field of artificial intelligence and research in the field of artificial intelligence" in 4220 in the 11th and earlier editions and with physics research and mechanical research in 4214 in the 10th and earlier editions;

3. Part (2) is cross-searched with calibration (measuring) in 4210 in the 12th and earlier editions;

4. engineering drawing is similar to architectural drafting in 4217;

5. quality inspection is similar to material testing in 4214;

6. technical research, technical-project research and scientific research are similar to geological research in 4210, chemical research and cosmetic research in 4211 and bacteriological research, biological research, medical research, scientific research in the field of genetics and veterinary-science research in 4212;

7. scientific-laboratory services are similar to medical-laboratory services and biomanufacturing-laboratory services in 4212.

Practice notes (J&C)

This group has two parts, which are not similar to one another: (1) technical research, engineering, physics research, mechanical research, technical-project research, scientific-laboratory services, etc.; (2) calibration (measuring), quality control, quality inspection, quality evaluation, etc. Official notes: technical and scientific research are similar to geological research in 4210, chemical research in 4211 and biomedical research in 4212; quality inspection is similar to material testing in 4214; engineering drawing is similar to architectural drafting in 4217; note 6 added “veterinary-science research” in 2026.

The prior search of research institutes and testing-and-certification bodies should include 4210–4214; research in the field of artificial intelligence was historically in 4220 (cross-searched in note 2) and is now in Part (1) of this group (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	4209（一）	420040	技术研究	technological research
42	4209（一）	420233	电信技术咨询	telecommunications technology consultancy
42	4209（一）	420192	城市规划	urban planning
42	4209（二）	420213	活立木的质量评估	quality evaluation of standing timber
42	4209（一）	420216	水质分析	water analysis
42	4209（一）	420236	撰写科技文稿	technical writing
42	4209（一）	420256	焊接领域的研究	research in the field of welding
42	4209（二）	420136	校准（测量）	calibration [measuring]