1. Signing a trademark license contract A trademark registrant may authorize others to use his registered trademark by signing a trademark license contract. 2. After the trademark license contract is filed, if another person is licensed to use its registered trademark, the licensor shall report the 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. When handling the trademark license, you should also pay attention to whether your trademark license is re-licensed or re-licensed. If this is the case, you need to pay attention to the following: 1. If a licensee sublicenses a registered trademark to a third party, it must submit the original contract signed with the original licensor that allows it to use the registered trademark to a third party, or the original licensor shall issue a corresponding power of attorney. 2. If the above-mentioned contract or power of attorney has been filed in the Trademark Office, Licensor still needs to submit the original or notarized copy of the above-mentioned contract or power of attorney when handling the new sub-license filing. 3. For multiple sub-licenses, the Licensor shall submit a copy of the contract, the original power of attorney or a notarized copy of the trademark from the first license to the current license when filing the sub-license. However, after you successfully license the trademark, if something happens in the middle, you can also terminate the trademark license contract in advance. In general, the procedure for early termination of a trademark license contract is as follows: 1. Fill in the Application Form for Alteration/Early Termination of Trademark License Contract, and indicate the early termination in the application items; 2. Provide the termination agreement signed by both parties or relevant legal documents for termination. 3. Copies of major qualification certificates of Licensor and Licensee.