What materials should be provided to complain about infringement of intellectual property rights? (1) If the trademark right of a commodity infringes upon the intellectual property rights of others, at least one of the following documents shall be provided when appealing:

1, complaint cancelled:

The respondent can contact and negotiate with the complainant to explain the purchase channel. If the two sides reach an understanding, they may ask the complainant to issue a letter of withdrawal of the complaint, indicating that the complaint has been withdrawn;

2. Purchase voucher:

If the respondent's goods were purchased through formal channels, a proof of purchase can be provided. However, only verifiable purchase vouchers such as invoices are valid, and receipts and purchase receipts are invalid;

3. Authorization certificate:

If the respondent has the brand authorization, it can provide authorization documents, such as distribution agreement and brand authorization agreement.

(2) If the intellectual property rights of others are infringed by patent infringement, at least one of the following documents shall be provided at the time of appeal:

1, patent certificate:

If the respondent owns the patent right of the goods sold, he can provide a patent certificate to appeal;

2. Voucher for purchasing goods from the complainant:

If the goods sold are purchased from the complainant, that is, the patentee, you can provide the purchase certificate to make a complaint. However, only verifiable purchase vouchers such as invoices are valid, and receipts and purchase receipts are invalid;

3, the complainant's patent certificate.

If you think that the complainant's patent right itself is unreasonable, you can provide proof. For example, it can be proved that similar technologies and commodities have been widely used or published in domestic and foreign publications long before the plaintiff applied for this patent right.