亚洲自拍偷拍av_国产精品久久久久久久午夜_欧美裸体视频_成人做爰www看视频软件_一级片无遮挡_国产精品18久久久久久久久_国产精品尤物_久久美女久久_成人在线精品视频_成人7777_亚洲一区二区三区免费在线观看_久久久精品人妻无码专区不卡_东北女人av_国产第一页在线观看_天天躁狠狠躁狠狠躁夜夜躁68

Before joining Unitalen Attorneys At Law, Mr. CAI was a patent attorney in a Patent & Trademark Law Office for eight and a half years. Mr. CAI has extensive experiences in handling patent affairs in the fields of mining, metallurgy, metallic and non-metallic materials, functional materials and devices, inorganic chemistry, chemical engineering, electro-chemical engineering and semiconductor devices etc. Mr. CAI provides various patent services, including preparation and prosecution of patent applications, legal opinions on patent validity, patent infringement analysis, patent litigation.