Legal analysis: In order to stop patent infringement, the patentee or interested party may apply to the people's court for the preservation of evidence before prosecution, if the evidence may be lost or difficult to obtain later. According to relevant laws and regulations, the people's court may order the applicant to provide a guarantee by taking preservation measures; If the applicant fails to provide guarantee, the application shall be rejected. The people's court shall make a ruling within 48 hours from the time of accepting the application; If an order is made to take protective measures, it shall be executed immediately. If the applicant does not bring a suit within 15 days from the date when the people's court takes protective measures, the people's court shall lift the measures.
legal basis: article 73 of the patent law of the people's Republic of China, in order to stop the patent infringement, the patentee or interested party may apply to the people's court for evidence preservation according to law before prosecution if the evidence may be lost or difficult to obtain later.