欧美特黄特级在线视频_一级a做片免费观看_亚洲高清中文字幕乱码_宇都宫紫苑ed2k 日韩精品中文字幕无码专区_99热国产在线精品99_亚洲日本香蕉观看观视频_亚洲精品毛片永久播放

Yonghua Leng

Parter/Patent Attorney

Practice Area:  Patent application/prosecution/Client counseling/Invalidation/litigation

Tel: 86-10-59208585 E-mail: yonghua.leng@unitalen.com   Office: Beijing

Professional Experience

Before joining Unitalen Attorneys At Law,she conducted scientific research in a research institute in Japan.

Since joining Unitalen Attorneys At Law, she has accumulated rich practical experience in patent application, reexamination and invalidation in the field of chemistry and chemical engineering, and she has dealt with hundreds of patent applications in related fields such as inorganic chemistry, organic chemistry, polymer chemistry, and material chemistry.

Education Background

College of Chemistry and Molecular Engineering, Peking University, Ph.D.
College of Chemistry and Molecular Engineering, Peking University, Bachelor

Working Language

Chinese English