Legal analysis: After the occurrence of patent infringement, evidence should be received first, so that the follow-up measures will have the initiative. Evidence includes: evidence of patent ownership, evidence of infringement and evidence of compensation amount. There are three ways to deal with patent infringement, including negotiation, administrative relief and judicial relief. After the occurrence of patent infringement, it should be noted that bringing a lawsuit is time-limited, that is, after the patentee knows the infringement, bringing a lawsuit within two years will not be accepted.
Legal basis: Article 20 of the Patent Law of People's Republic of China (PRC) shall follow the principle of good faith when applying for a patent and exercising the patent right. Do not abuse the patent right to harm the public interest or the legitimate rights and interests of others.