How to prove patent disputes?

If a party wants to give evidence in a patent dispute, he can collect evidence that can prove that he is the patentee and that he has been infringed by others and that he has suffered damage. Such as patent certificates, patented products, witness testimony, physical objects, photos, product catalogs, sales invoices, purchase and sale contracts and other evidence.

legal ground

Article 63 of the Civil Procedure Law of People's Republic of China (PRC)

Evidence includes:

(a) Statements of the parties;

(2) Documentary evidence;

(3) Physical evidence;

(4) Audio-visual materials;

(5) Electronic data;

(6) Testimony of witnesses;

(7) Appraisal opinions;

(8) Records of the inquest.

Evidence must be verified before it can be used as a basis for ascertaining facts.

Article 64

The parties have the responsibility to provide evidence for their claims. The people's court shall investigate and collect evidence that the parties and their agents ad litem cannot collect on their own due to objective reasons, or evidence that the people's court considers necessary for hearing a case. The people's court shall comprehensively and objectively examine and verify the evidence in accordance with legal procedures.

Article 65

The parties concerned shall provide evidence of their claims in time. The people's court shall, according to the litigant's claim and the trial of the case, determine the evidence that the litigant should provide and its time limit.