1. The transferor fails to deliver the documents and materials related to the registered trademark to the transferee as stipulated in the contract;

2. The assignor violates the provisions of the Trademark Law and fails to assign the same or similar trademarks registered on the same or similar goods;

3. Before transferring the registered trademark, the transferor has signed a trademark license contract with a third party, but transferred the registered trademark without the consent of the licensed third party;

4. The transferor fails to go through the trademark registration and transfer formalities with the State Trademark Office in accordance with the provisions of the Trademark Law.

The transferee's breach of contract in trademark transfer

1. The transferee does not meet the qualification conditions for trademark transfer stipulated in the Trademark Law;

2. The transferee fails to pay the registered trademark transfer money to the transferor in time according to the conditions stipulated in the trademark transfer contract;

3. The goods or services indicated by the registered trademark used by the transferee do not meet the quality requirements agreed in the contract;

4. The transferee fails to go through the trademark registration and transfer formalities with the State Trademark Office in accordance with relevant laws and regulations.

Licensor's breach of contract in trademark licensing

1. Licensor transfers the registered trademark to a third party without the consent of Licensee;

2. The term of the exclusive right to use the licensed trademark is approaching, and the licensor fails to apply for renewal in time to give up the exclusive right to use the trademark;

3. Licensor fails to supervise the quality of Licensee's goods as stipulated in the contract;

4. Licensor fails to go through the filing formalities in accordance with the relevant provisions of the Trademark Law.

The licensee's breach of contract in trademark licensing

1. The licensee does not meet the qualification conditions stipulated in the Trademark Law;

2. The licensee fails to use the registered trademark according to the scope of use agreed in the contract (the term of use of the trademark and the category of goods or services that can be approved for use), or the goods or services produced by using the registered trademark do not meet the quality requirements agreed in the contract;

3. The Licensee fails to pay the Licensor the fee for the use of the registered trademark according to the conditions stipulated in the contract;

4. The licensee fails to go through the filing formalities in accordance with the provisions of the Trademark Law.

The above are disputes that are easy to occur in trademark transactions. When a dispute arises, the breaching party may seek help from the Trademark Office or the intellectual property court in order to properly resolve the dispute and safeguard its legitimate rights and interests.