Class 23 — Yarns and Threads
Every entry WIPO publishes for Class 23 (Yarns and Threads) in NCL 13-2026: 22 official indications, each with its basic number. Copy wording as printed rather than paraphrasing it — the USPTO ID Manual is built from this same list.
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Looking for the wording to file? Class 23 in the USPTO ID Manual holds 252 entries of acceptable identifications: Class 23 · ID Manual →
Official class heading
- Yarns and threads for textile use
Explanatory note
Class 23 includes mainly natural or synthetic yarns and threads for textile use.
This class includes, in particular
- fibreglass, elastic, rubber and plastic threads for textile use
- threads for embroidery, darning and sewing, including those of metal
- spun silk, spun cotton, spun wool
This class does not include, in particular
- threads, other than for textile use, that are classified according to the material of which they are made, for example, threads for binding of metal (Class 6) and not of metal (Class 22), elastic threads, threads of rubber or plastic (Class 17), fibreglass threads (Class 21)
- certain threads for specific uses, for example, identification threads for electric wires (Class 9), surgical thread (Class 10), threads of precious metal being jewellery (Class 14)
Every official entry in this class
The alphabetical list published by WIPO for NCL NCL 13-2026, in force from 2026-01-01. Each entry carries its basic number; wording listed under “Also accepted” is a synonym the registry accepts for the same entry. Use the wording as printed — it is the same list the USPTO ID Manual is built from.
| Basic No. | Indication | Also accepted |
|---|---|---|
| 0001 | yarn* | thread* |
| 0002 | cotton thread and yarn | |
| 0003 | embroidery thread and yarn | |
| 0004 | woollen thread and yarn | |
| 0005 | hemp thread and yarn | |
| 0006 | coir thread and yarn | |
| 0007 | silk thread and yarn | |
| 0008 | spun cotton | |
| 0009 | sewing thread and yarn | |
| 0010 | spun thread and yarn | |
| 0011 | jute thread and yarn | |
| 0012 | spun wool | worsted |
| 0013 | linen thread and yarn | |
| 0014 | rayon thread and yarn | |
| 0015 | darning thread and yarn | |
| 0016 | spun silk | |
| 0017 | fibreglass thread for textile use | fiberglass thread for textile use |
| 0018 | rubber thread for textile use | |
| 0019 | elastic thread and yarn for textile use | |
| 0020 | threads of plastic materials for textile use | |
| 0031 | chenille yarn | |
| 0032 | thread of metal for embroidery |
3 synonym wording(s) are listed alongside their entries above.