1. What are the well-known trademark recognition institutions? Well-known trademarks in China are recognized by the Trademark Office, the Trademark Review and Adjudication Board and the people's court. The Trademark Office and the Trademark Review and Adjudication Board shall, at the request of the parties concerned, determine whether their trademarks constitute well-known trademarks in accordance with the provisions of Article 14 of the Trademark Law on the basis of ascertaining the facts; According to the provisions of the Interpretation of the Supreme People's Court on Several Issues Concerning the Application of Laws in the Trial of Trademark Civil Disputes. Second, what is the scope of protection of well-known trademarks? 1. A trademark applied for registration on the same or similar goods is a well-known trademark copied, imitated or translated by others, which is not registered in China. It is easy to cause confusion, so it is not registered and prohibited to use. 2. Where a trademark applied for registration of different or similar goods is a copy, imitation or translation of a well-known trademark registered by others in China, misleading the public and possibly harming the interests of the registrant of the well-known trademark, it shall not be registered and its use shall be prohibited. 3. If a registered trademark violates the relevant provisions of the Trademark Law, the trademark owner or interested party may request the Trademark Review and Adjudication Board to cancel the registered trademark within five years from the date of trademark registration. For malicious registration, the owner of a well-known trademark is not limited by five years. 4. If the use of a trademark violates the provisions of Article 13 of the Trademark Law, the parties concerned may request the administrative department for industry and commerce to prohibit the use. If it is recognized as a well-known trademark by the Trademark Office in accordance with Article 14 of the Trademark Law, the administrative department for industry and commerce shall order the infringer to stop using the well-known trademark in violation of Article 13 of the Trademark Law, and confiscate and destroy its trademark logo; Where it is difficult to separate a trademark from a commodity, it shall be confiscated and destroyed together. 5. If the owner of a well-known trademark thinks that others may deceive the public or cause misunderstanding to the public by registering the well-known trademark as the enterprise name, he may apply to the enterprise name registration authority for cancellation of the enterprise name registration. The competent authority of enterprise name registration shall handle it in accordance with the Provisions on the Administration of Enterprise Name Registration. 6. If another person's domain name or its main part constitutes a copy, imitation, translation or transliteration of a well-known trademark, it shall be deemed that its registration and use of the domain name constitute infringement or unfair competition. To sum up, after being recognized as a well-known trademark, it can be protected accordingly, and it also enjoys relatively high fertility in China, and the scope of legal protection is also very wide. However, well-known trademarks will only be recognized on the basis of registered trademarks, and the recognition institutions are also very authoritative.