legal ground
Article 2 16 of the Criminal Code of People's Republic of China (PRC).
Whoever counterfeits another person's patent, if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention and shall also, or shall only, be fined.
"Provisions of the Supreme People's Procuratorate and the Ministry of Public Security on the Standards for Filing Criminal Cases under the Jurisdiction of Public Security Organs (II)" Article 72.
Counterfeiting other people's patents, suspected of one of the following circumstances, shall be filed for prosecution:
(a) the amount of illegal business is more than two hundred thousand yuan or the amount of illegal income is more than one hundred thousand yuan;
(2) Causing direct economic losses of more than 500,000 yuan to the patentee;
(3) Counterfeiting more than two patents of others, with an illegal business amount of more than 100,000 yuan or an illegal income amount of more than 50,000 yuan;
(4) Other serious circumstances.