Hello, we need the following evidence:
1. Evidence of rights
(1) Proof of qualification of the plaintiff, ID card for natural persons, ID card for enterprises and institutions It is a business license or public institution registration certificate;
(2) Patent right certificate, proving the ownership status when the patent right is authorized;
(3) Copy of patent registration book;
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(4) Patent authorization announcement text: for inventions or utility models, the claims, description, abstract and abstract drawings; for designs, the announcement authorization pictures or photos and a brief description;
(5) Patent annual fee receipt: Proof that the patent continues to be valid;
(6) Utility model patent search report.
2. Evidence of infringement
(1) Documentary evidence: usually a notarized certificate. After the patentee discovers the infringement through market research, he usually files an application with the notary office for an infringement. Notarize the process of purchasing infringing products and the purchased infringing products, or conduct an investigation and notarization of the infringing site (such as a promised sale) or the installation site of the infringing products, and obtain a notarial certificate to prove the defendant's infringement;
(2) Physical evidence: The patentee purchases infringing products from the market. The purchased infringing products should be sealed by a notary and photographed. Before submitting it to the court, the plaintiff should ensure that the seal is intact, otherwise the defendant may raise objections during cross-examination and deny recognition of the infringing product.
3. Evidence of loss
(1) Patent implementation license contract. At present, a large number of patent holders sign patent licensing contracts with others and use the agreed royalties as the basis for requesting compensation;
(2) Financial audit report. According to the relevant provisions of the Patent Law, the amount of infringement compensation is determined with reference to the aforementioned patent license fees, as well as the losses suffered by the right holder due to the infringement or the benefits gained by the infringer due to the infringement and statutory compensation.