Legal analysis: Intellectual property companies provide intellectual property agents and services for enterprise intellectual property management, mainly referring to agency companies, such as patent agencies and trademark registration agencies, which can help enterprises to write patent application documents and registered trademark application documents. Others provide consulting services, for example, analyzing the patent market of an industry, predicting patent trends, and forming some patent research documents for enterprises' reference. In addition, there are some intellectual property service companies whose main business is counterfeiting. Entrusted by enterprises, products with counterfeit trademarks and patents are found in the market through investigation, and complaints are made through administrative or judicial channels to safeguard the intellectual property rights of enterprises.

Legal basis: Article 18 of the Patent Law of People's Republic of China (PRC), if a foreigner, foreign enterprise or other foreign organization that has no habitual residence or business office in China applies for a patent and handles other patent affairs in China, it shall entrust a legally established patent agency to handle it. Units or individuals applying for patents and handling other patent affairs in China may entrust a legally established patent agency to handle them. Patent agencies shall abide by laws and administrative regulations, accept the entrustment of clients, and handle patent applications or other patent affairs; The contents of the client's invention and creation shall be kept confidential, except that the patent application has been published or announced. Specific measures for the administration of patent agencies shall be formulated by the State Council.