Mr. Yan’s practice focuses on patent reexamination and invalidation, patent infringement analysis, patent litigation, patent consultation and patent search in organic and high polymer chemistry, chemi

Ms. Li is one of the first patent agents in China and national excellent agent, and she was rated as associate researcher of natural science field by provincial senior judge in 1995 and National Three

Mr. Huang has extensive and enriched experience in patent drafting, patent invalidation and reexamination about electronic technique, automatic control, electric system, integrated circuit, computer t

Mr. Li’s practice ranges from patent drafting, response to office action, patent invalidation to search, consultation and infringement analysis, he has extensive experience in mechanical engineering a