Mr. Ling joined Liu, Shen & Associates in 2008 and became a qualified patent attorney in 2009. He specializes in patent prosecution, re-examination, analysis of infringement and patent invalidation, and client counseling with a focus on polymer，battery material, petroleum refining，semiconductor material，catalyst，membrane，process of production and treatment of chemical feedstock such as olefin and of polymer, chemical apparatus.

Mr. Ling has participated in several patent lawsuits including patent infringement and patent invalidation, patent licensing counseling.

Mr. Ling had a PhD from Tsinghua University in 2008.