1. Cost and time: Complaints about utility model patents require certain legal fees, and handling disputes requires a lot of time and energy. If the appeal is unsuccessful, the patentee will not only lose the litigation costs, but also bear other related expenses, such as attorney's fees.
2. Invalid patent: In the process of appeal, the patent right will be declared invalid. When a patent is declared invalid, the patentee will lose the protection of the patent and cannot continue to enjoy the patent rights and interests. This may cause great losses to the business interests and competitiveness of the patentee.