US Trademark Classification
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 |
|---|---|---|---|
| 01 | 001-363 | 锔 | Curium |
| 01 | 001-362 | 异丙苯 | Cumene |
| 01 | 001-361 | 冰晶石 | Cryolite |
| 01 | 001-360 | 巴豆酸 | Crotonic acid |
| 01 | 001-36 | 汽车冷却系统防锈剂 | Automobile cooling system rust inhibitors |
| 01 | 001-358 | 甲酚 | Cresol |
| 01 | 001-357 | 硫酸铜 | Copper sulphate |
| 01 | 001-356 | 碳酸铜 | Copper carbonate |
| 01 | 001-355 | 钫 | Francium |
| 01 | 001-354 | 甲酸 | Formic acid |
| 01 | 001-353 | 甲酸盐 | Formate |
| 01 | 001-352 | 甲醛 | Formaldehyde |
| 01 | 001-35 | 汽车冷却系统泄漏密封剂 | Automobile cooling system leak sealants |
| 01 | 001-349 | 防火制剂 | Fireproofing preparations |
| 01 | 001-348 | 氯化铬 | Chromium chloride |
| 01 | 001-347 | 铬矾 | Chrome alum |
| 01 | 001-346 | 氯磺酸 | Chlorosulphonic acid |
| 01 | 001-345 | 氯丙烯 | Chloropropylene |
| 01 | 001-344 | 氯丁二烯 | Chloroprene |
| 01 | 001-343 | 氯硝基苯胺 | Chloronitroaniline |
| 01 | 001-342 | 氯萘 | Chloronaphthalene |
| 01 | 001-341 | 氯甲醚 | Chloromethyl ether |
| 01 | 001-340 | 氯气 | Chlorine |
| 01 | 001-339 | 氯化酸 | Chlorinated acids |
| 01 | 001-338 | 氯碱 | Chloralkalis |