Using the "TM" or "R" tags is not required. However, it is recommended to use it to indicate that the exclusive right of the trademark is protected by law.
According to Article 63 of the "Regulations for the Implementation of the Trademark Law":
When using a registered trademark, you may indicate "registered trademark" on the goods, product packaging, instructions or other attachments or registration mark. Registration marks include (note plus ○) and (?). The registration mark should be marked on the upper right corner or lower right corner of the trademark (where R is the abbreviation of REGISTER).
Some trademarks are marked with TM in the upper right corner. TM is the abbreviation of TRADEMARK. American trademarks are usually marked with TM, which does not necessarily refer to a registered trademark.
Therefore, the law only stipulates the use of the exclusive right to obtain a registered trademark, but whether to use a registered mark can be decided by the right holder.
Extended information:
Benefits of registered trademarks
1. It is easier for consumers to recognize the brand and shop.
2. The trademark registrant has the exclusive right to use the trademark and is protected by law.
3. Through trademark registration, you can create a brand and occupy the market first.
4. A trademark is an intangible asset and its value can be evaluated.
5. Trademarks can be transferred, licensed to others, or pledged to realize their value.
6. Trademark is also a necessary condition for quality inspection, health inspection, bar code, etc.
7. Local industrial and commercial bureaus at all levels supervise the quality of goods and services through trademark management
Baidu Encyclopedia - Registered Trademarks