Answer: The so-called famous trademarks refer to registered trademarks that have high market reputation and commercial value, are well-known to the relevant public, and are recognized in accordance with the law. Well-known trademarks, famous trademarks and well-known trademarks are "famous trademarks". There are many similarities and significant differences between the three, which are mainly reflected in the following aspects: First, the recognition agencies are different: well-known trademarks are registered by the State Administration for Industry and Commerce. The bureau or people's court shall determine according to judicial procedures. Famous trademarks shall be recognized by the provincial industrial and commercial department, while well-known trademarks shall generally be recognized by the local (city) industrial and commercial departments. Second, the identification standards are different: a well-known trademark must be known to the relevant public across the country, while a famous trademark and a well-known trademark must be known to at least the relevant public in the province or local (city). Third, the requirements for trademark registration are different: a well-known trademark may be a registered trademark or an unregistered trademark, while a famous trademark and a well-known trademark must be a registered trademark. At the same time, the three can also be transformed into each other, because the reputation and popularity of each trademark continue to change with the passage of time or changes in the use of the trademark user. Well-known trademarks can gradually evolve into well-known trademarks. Well-known trademarks may also be diluted into famous trademarks or even ordinary trademarks. Famous trademarks