How to solve the dispute of invalid patent transfer contract

Disposal after the contract for the transfer of patent application right is declared invalid: the parties shall return the property or property interests obtained from the contract for the transfer of patent application right. If it is impossible or unnecessary to return it, they shall make compensation at a discount.

legal ground

Article 155 of the Civil Code of People's Republic of China (PRC)

An invalid or revoked civil juristic act is not legally binding from the beginning.

Article 157

After a civil juristic act is invalid, revoked or deemed invalid, the property acquired by the actor as a result of the act shall be returned; If it is impossible or unnecessary to return it, it shall be compensated at a discount. The party at fault shall compensate the other party for the losses thus suffered; If all parties are at fault, they shall bear their respective responsibilities. Where there are other provisions in the law, those provisions shall prevail.