# registered sign

> registered sign (U+00AE), symbol « ® » indicating a trademark or service mark that has been registered with a national trademark office

**Wikidata**: [Q1853446](https://www.wikidata.org/wiki/Q1853446)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Registered_trademark_symbol)  
**Source**: https://4ort.xyz/entity/registered-sign


## References

1. Freebase Data Dumps. 2013
2. [Unicode 13.0. 2020](https://www.unicode.org/Public/13.0.0/ucd/NamesList.txt)
3. [Source](https://html.spec.whatwg.org/multipage/named-characters.html)
4. [Source](https://html.spec.whatwg.org/multipage/syntax.html#character-references)
5. [Source](https://www.unicode.org/Public/UCD/latest/ucd/NamesList.txt)