Legal analysis: Under normal circumstances, if both parties sign a trademark license contract voluntarily, the license contract will be established and come into effect according to law even if it has not been filed. Of course, if both parties agree that the license contract will take effect only if it is filed with the Trademark Office, then the license contract will take effect only if it is filed with the Trademark Office.

legal basis: article 43 of the trademark law of the people's Republic of China, a trademark registrant may authorize others to use his registered trademark by signing a trademark license contract.

the licensor shall supervise the quality of the goods in which the licensee uses its registered trademark. The licensee shall guarantee the quality of the goods using the registered trademark. Where a registered trademark of another person is used with permission, the name of the licensee and the place of origin of the goods must be marked on the goods using the registered trademark. Where another person is licensed to use his registered trademark, the licensor shall report his trademark license to the Trademark Office for the record and the Trademark Office shall make an announcement. A trademark license may not be used against a bona fide third party without filing.