国产成人av综合色-国产成人a人亚洲精品无码-国产成人a亚洲精v品无码-国产成人a在线观看视频免费-国产成人a在线观看视频免费-国产成人精品123区免费视频

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
主站蜘蛛池模板: 久久一区二区三区免费 | 天天舔天天舔 | 美女内射毛片在线看免费人动物 | 亚洲精品国产精品国自产观看 | 麻豆亚洲av熟女国产一区二 | 久操欧美| 婷婷亚洲综合五月天在线 | 亚洲国产无线乱码在线观看 | 久草在线免费新视频 | 无套内射在线无码播放 | 亚洲s码欧洲m码国产av | 欧美精品另类 | 亚洲精品久久久久中文字幕一区 | 另类婷婷 | 久久精品国产亚洲av蜜臀 | 激情小视频在线观看 | 骚片av蜜桃精品一区 | 久热免费在线视频 | 精品国内视频 | 久激情内射婷内射蜜桃 | 少妇极品熟妇人妻 | 狠狠干婷婷 | 精品中文字幕在线观看 | 亚洲高清中文字幕综合网 | 欧美日韩在线成人 | 久久综合桃花 | 精品伊人久久久大香线蕉欧美 | 欧美视频性 | 丝袜美腿中文字幕 | 7777精品伊人久久久大香线蕉 | 99精品免费视频 | 日本视频在线免费播放 | 成人无码区免费A片视频日本 | 欧美日本在线一区二区三区 | 精品国产污污免费网站入口 | 国产在线拍小情侣国产拍拍偷 | 漂亮人妻被黑人久久精品 | 黄色一级视频网站 | 欧美无遮挡一区二区三区 | 国产 欧美 日本 | 欧美性猛交xxxx乱大交 |