Legal analysis: (1) Different compositions: Font sizes can only be composed of words, while trademarks can include combinations of words, graphics, letters, numbers, three-dimensional logos and colors. The font size is used to distinguish the enterprise, while the trademark is used to distinguish the enterprise's goods and services.

(2) The approval agencies are different and the scope of protection is different: Enterprise trade names are approved by industrial and commercial administrative agencies at all levels, and market access licenses are issued to enterprises. The scope of legal protection is limited to the place of registration. The trademark is approved by the Trademark Office of the State Administration for Industry and Commerce. It is the embodiment of the core value of the corporate brand. It is protected by nationwide laws and is unique in the same industry nationwide.

(3) The company name consists of administrative division, trade name, industry and organizational form in order. The font size is an important part of the company name, and often the font size is the abbreviation of the company name. The font size must consist of more than two Chinese characters that comply with national standards, and must not contain Chinese pinyin, Arabic numerals, etc.; the font size must not contain administrative division terms; industry terms; or organizational form terms.

Legal basis: "Trademark Law of the People's Republic of China" Article 59 The registered trademark contains the common name, graphics, model of the product, or directly represents the quality and main raw materials of the product , function, purpose, weight, quantity and other characteristics, or the place name contained therein, the owner of the exclusive right to a registered trademark has no right to prohibit others from legitimate use. The owner of the exclusive right to the registered trademark has no right to prohibit others from using the shape contained in a three-dimensional mark registered trademark due to the nature of the product itself, the shape of the product required to obtain technical effects, or the shape that makes the product of substantial value. Before the trademark registrant applies for trademark registration, if others have already used a trademark that is identical or similar to the registered trademark and has certain influence on the same goods or similar goods before the trademark registrant, the owner of the exclusive right to the registered trademark has no right to prohibit the user from using the original trademark. Continue to use the trademark within the scope of use, but you can require it to be attached with appropriate distinguishing marks.