"R" is the abbreviation of English "register", which means "registration" in Chinese. When a commodity or service is marked with this mark, it tells people that the graphics or words it marks are not only trademarks, but also registered trademarks, which are protected by national laws and cannot be used by any other individual or organization without authorization.

"TM" is common in foreign trade marks. It is the abbreviation of English "trade mark", which means "business mark" in Chinese, so "TM" means "trademark". Its function is to tell people that the graphic or text it marks is the trademark of this commodity or service, not the name or advertising.

they are protected by different laws.

Extended information:

Composition of a trademark

As the letters constituting a trademark, it refers to the smallest writing unit of pinyin characters or phonetic symbols, including pinyin characters and foreign letters such as English letters and Latin letters.

The original Trademark Law classified trademarks consisting only of letters as word mark, while the newly revised Trademark Law in 21 regarded letters as one of the constituent elements of trademarks, which is more practical and convenient for the competent trademark authorities to examine and approve trademark registration applications according to law.

Numbers, as the constituent elements of trademarks, are also the new provisions of the Trademark Law in 21. Numbers that constitute a trademark can be Arabic numerals or Chinese capital numerals.

as a three-dimensional mark that constitutes a trademark, it can also be called a three-dimensional mark, which is a three-dimensional mark with three measures of length, width and height.

a trademark mark composed of three-dimensional marks is called a three-dimensional mark, which is different from the trademark pattern that we usually see on a plane, but appears as a three-dimensional material form, which may appear in the shape of goods, or in containers or other places of goods.

Adding the provisions on the registration and protection of stereoscopic trademarks is a new content added in the Trademark Law revised in 21, which will make the trademark protection system in China more perfect.

Color combination as a trademark element alone is also a new addition in the Trademark Law in 21. Unique and novel color combination can not only give people a sense of beauty, but also be significant, which can play a role in indicating the source of products or services, and can also play a role in distinguishing producers, operators or service providers.

a sound trademark is a group of music composed of notes or a trademark of a commodity or service with a special sound.

the above-mentioned trademark elements can be registered as trademarks alone, or two or more of the above-mentioned elements can be combined arbitrarily, identical or different, but they must comply with the relevant provisions of Articles 8 and 9 of the Trademark Law.

the colors of words, graphics, letters, numbers, sounds, three-dimensional signs or their combinations that constitute trademarks are registered in black and white colors and protected in black and white colors if the specified color requirements are not explicitly put forward when applying for trademark registration. If the specified color or color combination is explicitly put forward, it will be registered and protected according to the specified color or color combination.

Baidu Encyclopedia-Trademark Law of the People's Republic of China