Identification of illegal evidence in patent infringement litigation

In a patent infringement dispute case, if the accused infringer claims that the patentee obtained the evidence by illegal means as stipulated in Article 106 of the Supreme People's Court's Interpretation on the Application of the Civil Procedure Law of People's Republic of China (PRC), he can comprehensively judge whether there is an emergency that the evidence may be lost, whether the evidence belongs to the key evidence of patent relief, and whether the damage to the rights and interests of others caused by the act of obtaining evidence is obviously less than that caused by the act of obtaining evidence to the patentee.