After an enterprise has its business license revoked, its trademark and patent are still valid. According to the provisions of the "Trademark Law of the People's Republic of China" and the "Patent Law of the People's Republic of China", trademarks and patent rights are rights that have nothing to do with corporate legal personality, as long as the application for trademark or patent rights complies with legal provisions , and no violation of laws and regulations is found when applying, then even if the enterprise's business license is revoked, the trademark or patent right is still valid.

However, it should be noted that if an enterprise fails to perform relevant obligations during the period when its business license is revoked, such as failure to pay annual fees or failure to perform maintenance, etc., the trademark or patent rights may become invalid. In addition, if a company's trademark or patent rights conflict with the rights and interests of other companies, it may also lead to disputes and disputes. Therefore, enterprises should abide by relevant laws and regulations during their operations, pay fees in a timely manner and maintain their trademarks and patent rights.