2. Once the patent transfer right takes effect, the transferee gains the status of patentee and the transferor loses the status of patentee. The patent transfer contract shall not affect the effectiveness of the transferor entering into a patent licensing contract with others before the establishment of the contract. Unless otherwise agreed in the contract, the rights and obligations stipulated in the original patent licensing contract shall be borne by the patent transferee. In addition, if the transferor has already exploited the patent before concluding the patent right transfer contract, unless otherwise agreed in the contract, the transferor shall stop the exploitation after the contract is established.
3. When the patent right belongs to more than two patentees, sometimes, if one party transfers its sole patent right, the other party can get its share first.