How to write the power of attorney for patent change?

If another person applies for changing the patent right, it shall submit a power of attorney. The trustor may specially entrust the trustee to handle one or more affairs, or generally entrust the trustee to handle all affairs. An entrustment contract is a contract in which the principal and the trustee agree that the trustee will handle the principal's affairs.

legal ground

Article 9 19 of General Principles of Civil Law of People's Republic of China (PRC) is a contract in which the client and the trustee agree that the trustee shall handle the client's affairs. Article 920 The principal may entrust the agent to handle one or more specific affairs, or may entrust the agent to handle all general affairs. Article 921 The trustor shall prepay the expenses for handling the entrusted affairs. The client shall reimburse the trustee for the necessary expenses paid by the entrusted firm and pay interest.