Na ZHANG, partner at Leader Patent & Trademark Firm (belonging to Leader IP Group), is an intellectual property lawyer and also a patent attorney, skilled in the full chain of patent related work, including patent application strategy consulting, patent drafting and prosecution, patent invalidation action and administrative litigation, and patent infringement litigation. Several cases handled were listed in Top 50 Typical Cases of the Patent Reexamination Board, Guidance case by the Supreme Court of PRC, Annual Focus Cases of Intellectual Property, and Top 10 Intellectual Property Cases with High Value in Judgment Research. She also undertakes multiple social positions, including serving as the training expert of All China Patent Agents Association, the expert of Beijing Intellectual Property Protection Service, the training expert of Capital Intellectual Property Service Industry, and the technical expert of multiple patent protection centers.

Representative Cases:

Ø Qualcomm vs. Apple series cases, represented Qualcomm to handle the infringement litigations, invalidation cases and administrative litigations

Ø Qualcomm vs. Meizu series cases, represented Qualcomm to handle the infringement litigations, invalidation cases and administrative litigations

Ø Sony vs. WiLan case, represented Sony to handle the invalidation case

Ø Huawei vs. ZTE series cases, represented Huawei to handle the infringement litigations, invalidation cases and administrative litigations

         Ø OPPO vs. Nokia series cases, represented OPPO to handle the invalidation cases

Technical Field: Telecommunication, Electronic Engineering, Automation

Language: Chinese, English

Office Location: Beijing, China