To tell you the truth, if it is just for the postgraduate entrance examination interview, you don’t have to spend so much money. Moreover, even if you do it now, I am afraid that you may not be able to make it in time for the postgraduate entrance examination interview this year. The application time for an invention patent is one year, and it may not be approved yet. Moreover, as long as you are not admitted to a particularly good school, once you write that you have a patent, the interviewing teacher will be very concerned about it and keep asking about patent-related things. If what you say is not on topic, it will give people a bad impression. . I have only seen seniors and seniors get patents in order to get national scholarships or to obtain household registration in Shanghai or Beijing.