The first one is not very common, because the transfer of trademarks is unrestricted, so when an enterprise transfers a trademark that has been used for a long time, its influence is too great, which easily confuses consumers, leads to the convergence of other related trademarks, and will cause market confusion. Therefore, in order to protect the rights of the trademark assignee, the Trademark Office will restrict such trademarks and will not allow trademark transfer.

The second type is obviously a more common type, and the transferred trademark is in an invalid period. This is mainly due to two situations: the trademark did not complete the application for trademark renewal within the specified time, and there was still no reply after the renewal; Another situation that caused this scene is that the trademark has not been used substantially for three years. This type of trademark assignee is best not to choose.

The third is that some elements of the transferred trademark have not been approved. The transfer of a trademark needs the approval of the Trademark Office to be effective. If the trademark owner changes the elements of the trademark without authorization, such trademarks are not protected by law. In addition, the personal information of the trademark registrant is changed without authorization, and the trademark may not be transferred without going through the relevant procedures.

Finally, the enterprise should apply for the change of trademark information in time as stipulated in the Trademark Law, and the transferee should clarify the status of the trademark to prevent the transferee from receiving a deadline that has no legal effect and is close to the need for renewal. If the lease is renewed, the transferor shall renew the lease before transferring it, otherwise the transferee shall bear the cost of renewing the lease and increase consumption.