How long does it take to handle the patent transfer?

How long does it take to handle the patent transfer? China's patent law stipulates that the right to apply for a patent and the patent right can be transferred. So how long does it take to transfer the patent? How long does it take to transfer a patent? Patent transfer requires both parties to sign a patent transfer contract, and then go through the formalities for changing the registered items in China National Intellectual Property Administration. To go through the formalities for changing the registered items, you should submit: 1, the declaration for changing the registered items. 2. Proof materials (patent right transfer contract): If the patentee requests to change due to the right transfer or gift, it shall submit the transfer or gift contract. The contract is concluded by the unit, which shall be stamped with the official seal of the unit or the special seal for the contract. When concluding a contract, a citizen shall sign or seal it. If there is more than one patentee, all the certification materials that the patentee agrees to transfer or donate shall be submitted. 3. Pay the recording project change fee within one month from the date of request, 200 yuan.