Mr. Chen joined Liu, Shen & Associates in 2008 and is a patent attorney and qualified as an attorney at law. He specializes in patent prosecution, re-examination, patent invalidation, IP litigation, and client counseling with a focus on mechanical engineering.

Mr. Chen has obtained a bachelor degree in mechanical engineering and doctor degree in material processing engineering from Tsinghua University. 

Representative cases of Mr. Yaojian CHEN comprise:

Invalidation

- Representing an Australian company in three invalidation cases, win all;

- Representing GI in defending a key patent four times, win all;

- Representing a German Company in two invalidation cases, win both.

Litigation

- Representing a domestic suitcase Company in defending an infringement case, successfully invalidated the Patent, the other party dropped the infringement case. Winning the subsequent first instance and second instance of the administrative litigation.