one selected casebook.
Intellectual Property Courts, local intellectual property courts, and the Reexamination and Invalidation Department of the State Intellectual Property Office—
This volume covers all major areas of China's intellectual property protection system.
annual top-ten lists
courts and CNIPA review panels
consumer, internet, life sciences and more
A handful of matters
that shaped doctrine.
IPO Shield — Defending a Legacy Appliance Maker Against a Patent Siege
On the eve of the client's main-board IPO, a top competitor launched four waves of 16 lawsuits across 11 core patents, claiming RMB 31 million in damages. We deployed a 'patent invalidation first + non-infringement defense in parallel' strategy and neutralized every action across three courts and three appellate levels.
Luxury Auto Suspension Saga — Defending a Global Carmaker Against an Individual Patentee
An individual patentee filed two infringement suits in Hefei targeting two of the client's top-selling models. We used full-color principle comparisons, exploded technical diagrams and expert witness testimony to make four distinguishing features visible to the bench. Result: appellate affirmance of the favorable first-instance ruling in case one; voluntary withdrawal in case two.
Cross-Border Criminal Bust — Dismantling a Counterfeit Network for a Premium European Stroller Brand
A six-month undercover investigation mapped a complete criminal chain ('sales — contract manufacturing — multi-factory dispersed processing — central assembly'). Coordinated A/B operational plans with the public security bureau enabled a synchronized raid in the stroller-industry hub.
Ten-Year Saga Ended at the SPC — Retrial Win for a U.S.–China Auto JV in a Utility-Model Patent Case
The same plaintiff filed repeated suits on the same patent and same evidence for eight years. Representing the defendant, we fought from Beijing No. 1 Intermediate Court through Beijing High Court and the Beijing IP Court to a denial of retrial at the Supreme People's Court. The case has since been repeatedly cited as a typical case on rules for using judicial appraisal opinions as evidence.
SPC Top-Ten IP Case — Battle Over an Air-Conditioner Custom-Curve Invention Patent for a Global Appliance Leader
Vigorously contested on three focal issues: patent validity, the doctrine of equivalents and a breakthrough on the statutory damages ceiling. The 2-million-RMB damages award at first instance was affirmed on appeal; the case was selected as one of the Supreme People's Court's Top-Ten IP Cases of the year.
Full Claims Invalidated — A U.S. Semiconductor LED Leader Strikes Back at a Top Chinese Research Institute's Patent
Sued for patent infringement by a leading Chinese research institute, the client retained Kangrui to handle infringement defense and pursue full invalidation. Multi-channel, back-to-back prior-art searches, a Patent Reexamination Board oral hearing, and first-instance administrative litigation at the Beijing IP Court — all claims of the asserted patent invalidated.