Similarities: All three can be used to distinguish the source of services and goods, improve the competitiveness of products, and better safeguard the rights of consumers. Differences: (1) Scope: ①logo The scope involved is the design level ② In addition to the design, the trademark can also describe sounds, smells, etc. ③ In addition to the trademark, the brand also includes consumers’ views on the trademark, the publicity of the trademark, etc. (2) Deadline: ① logo The validity period is generally 50 years. ② A trademark is valid for ten years after registration. It can be extended by renewal before expiration. In principle, it can be used forever. ③ Brands are the same as trademarks. Trademarks are the basis of brands, so the validity period is also based on trademarks. (3) Degree of protection ① Once the logo is designed, it has copyright and is protected by the Copyright Law ② A trademark needs to be registered to have relatively comprehensive legal protection. Unless it is a well-known trademark, it will receive partial protection. Other unregistered trademarks will not Legal protection. Registered trademarks are protected by the "Trademark Law", and the protection is stronger than the "Copyright Law" ③ Brands are the same as trademarks (4) Rights ownership ① Unless otherwise agreed, the logo belongs to the designer ② Trademark rights belong to the trademark applicant ③ Brand and trademark consistent