Ms. zelene X. ZHANG graduateed from North University of China majoring in Electronic Science and Technology,get a Bachelor's degree. Entered the intellectual property industry in 2016. Ms.Xu X.Zhang serves many enterprises, such as Sinopec Group, CRRC Corporation Limited and so on . She is particularly good at electronic circuit,  intelligent robot technology, patent reexamination, invalid &litigation, and a variety of projects relating to patent consulting, patent mining and patent portfolio.