legal ground
Article 5 of the Measures for Administrative Enforcement of Patents (revised 20 15).
When necessary, China National Intellectual Property Administration can organize relevant patent administrative departments to investigate and deal with patent infringement disputes and counterfeit patent cases that have great influence. For major cases involving more than two provinces, autonomous regions and municipalities directly under the Central Government, the departments in charge of patent affairs of the relevant provinces, autonomous regions and municipalities directly under the Central Government may report to China National Intellectual Property Administration for coordinated handling or investigation. China National Intellectual Property Administration should give necessary guidance and support to the difficult problems encountered by the patent administration department in patent administrative law enforcement.