Hello, all patents must be submitted to the State Intellectual Property Office in Beijing for processing. The local Intellectual Property Office cannot handle it. You can find an agency to represent you. The agency has professional agents. The success rate of writing materials and applying for patents is relatively high. There is a Zhongding Guolian Intellectual Property Handan branch in Handan that is pretty good. You can call 5307916 for consultation. I hope it can help you