Case 1:

In 2017, entrusted by China Railway Science and engineering group, it won the lawsuit on behalf of an engineering equipment company listed in dastak in the United States against its high-speed railway equipment infringement case.

The patent name involved in the case is "displacement platform transportation and rack integrated machine". The case lasted for 4 years, involving the key equipment of China's high-speed railway construction project. It was finally concluded with the final judgment of Jilin high court that there was no infringement. The case was elected as the fifth of the top ten cases of Jilin Provincial High Court in 2017.

Case 2:

In 2018 - entrusted by Ningbo oaks air conditioning company, it won the first instance of the patent infringement dispute case of utility model, and the court recognized Gree's infringement and ordered to compensate 10 million yuan.

As for the infringement of utility model patent involved in this case, there are difficulties in determining the ownership, determining whether the existing technology defense is established, and how to determine the amount of compensation. Finally, the court supported the client's claim, which became the first instance case of patent infringement with the highest single product compensation in Zhejiang Province in 2019.

Case 3:

In 2018, he Junxin, a natural person, sued the Patent Reexamination Board of the State Intellectual Property Office of the people's Republic of China on patent invalidation, and won the retrial.

The client's invention patent "a kind of smart card" is the core terminal technology of hardware mobile payment. It was declared invalid by the Reexamination Committee due to the request of major domestic digital communication enterprises. After that, we represented the administrative litigation, went through the first trial, the second trial, the Supreme Court retrial, and finally the Beijing High Court retrial. After four years, it finally regained the patent right and was elected into the Beijing Higher People's court An overview of difficult cases of intellectual property rights, edited by Wang Mingda.