1, trademark transfer must be approved by the State Trademark Office before it is protected by law, otherwise it will be regarded as invalid transfer. Article 42 of the Trademark Law stipulates that if a registered trademark is assigned, the assignor and the assignee shall sign an assignment agreement and file an application with the Trademark Office. The transferee shall guarantee the quality of the goods using the registered trademark. 2. Where a registered trademark is transferred, the trademark registrant shall transfer the similar trademark registered on the same commodity or the same or similar trademark registered on similar commodities. This is also stipulated in Article 42 of the Trademark Law. For example, if you have three similar trademarks, you must transfer them together, not just one or two of them. 3. Where a trademark assignor licenses others to use its registered trademark, it must obtain the consent of the licensee before it can be transferred to a third party. Simply put, if you have a trademark for others to use, at this time, if you want to transfer it, you have to get the consent of others. 4. If an enterprise cancels or an individual dies and fails to go through the trademark transfer formalities within one year from the date of cancellation or death, it can no longer go through the trademark transfer formalities, and its trademark ownership naturally disappears. Eight points for attention in trademark transfer. The trademark being applied for can also be transferred, but the application failed and the transfer was unsuccessful. 6. Both parties to the trademark transfer must have business licenses, and natural persons must have personal licenses, otherwise they cannot apply. 7. Notarization of trademark transfer is not necessary, but from the perspective of transfer security, we suggest notarization to prevent regret. 8. Trademark transfer cannot be suspended. If both parties have submitted their applications, they can't stop. If it is to be revoked, it can only be transferred twice, and the trademark can be transferred to the original transferor. In addition, the time and cost of trademark transfer are not fixed. The time of transfer is mainly related to the efficiency of the trademark office, while the cost is related to the quality of the trademark itself.