If a person is punished for patent infringement of other people's intellectual property rights, at least one of the following documents shall be provided when appealing:

(1) patent certificate: If you are the patentee of the goods sold, you can provide a patent certificate to appeal;

(2) Proof of purchasing goods from the complainant: If the goods you sell are purchased from the complainant, that is, the patentee, you can provide proof for your complaint. However, only verifiable purchase vouchers such as invoices are valid, and receipts and purchase receipts are invalid;