YiJu and Sunshine IP jointly represented the patentee Aipeiyi in successfully closing a utility model patent invalidation case vs. Huawei. The State Intellectual Property Office passed Examination Decision No.46459, which, based on Claims 1-14 submitted by YiJu on behalf of the patentee, upheld that the utility model patent owned by Aipeiyi, "Voice coil motor for driving liquid lens and its lens unit" (ZL201820385939.8) was valid.
Up to now, YiJu has adopted methods of resubmitting claims and modifying the contents of claims in invalidation proceedings for many times, and succeeded in helping patentees maintain the validity of patents and making their patent rights more stable.
YiJu has more than 30 patent litigators and full-time intellectual property lawyers, and has represented more than 2,000 litigation cases relating to patent invalidation, infringement litigation, administrative litigation infringement and trademark litigation, etc., including many cases with social impact, e.g., CSPC levamlodipine patent dispute, Gree vs. Aux patent invalidation case, Mobike patent invalidation case, Hong Kong-Zhuhai-Macao Bridge patent invalidation case, Tencent "Wesee" trademark administrative litigation, Zhongshan Yunteng trademark infringement litigation, Liebherr trademark administrative litigation, Zhoukou "Changshoushan" trademark administrative litigation, patent inventor qualification dispute related to Beijing Olympic "Giant Footprint" launcher, Lertech patent ownership dispute, SJ Environmental Protection unfair competition litigation, U.S. CBI trade secret litigation, etc. Among these, the Mobike patent dispute case was selected as one of the "Top Ten Typical Cases of Patent Administrative Protection in Beijing in 2017", one of "Top Ten Cases of Patent Invalidation & Reexamination in 2017 issued by Patent Reexamination Board", Jinyuan Maofeng patent dispute case was selected as one of the "Top Ten Typical Cases of Patent Administrative Protection in Beijing in 2017" and "Top Ten Typical Cases of Patent Infringement and Counterfeiting in 2017 issued by CNIPA", Lertech patent dispute was selected as one of the "Typical Cases of Intellectual Property Court of Supreme People's Court", and Aipeiyi vs. Huawei patent invalidation case of "Liquid anti-shake lens" and the patent invalidation case of "Clathrate compound for butylphthalide cyclodextrin or cyclodextrin derivatives and its preparation method and application" were jointly selected as one of the "Top Ten Cases of Patent Invalidation & Reexamination in 2020 issued by CNIPA". For each and every patent dispute litigation case, YiJu establishes, on a case-by-case basis, a panel consisting of legal experts, technical experts, senior patent agents and senior attorneys at law to analyze and handle the case in all aspects, which is also the consistent service style of the litigation and invalid team of YiJu Law Firm.