If the patent application is unsuccessful, can I change my agent to apply again?

Patent literally refers to exclusive rights and interests. In China, there are three kinds of patents: inventions, utility models and designs. According to the basic principle of patent law, only one patent right can be granted to the same invention. When two or more people file patent applications for the same invention-creation, there are two principles: one is the principle of invention priority, and the other is the principle of application priority. Therefore, whether the patent application is successful or not has nothing to do with the patent office. Only the patent you want to apply for has been submitted or applied for by a similar patent. Changing to another store is just a waste of time and money.