Ms. Yuanxia Liu has rich skills in developing practical and effective strategies and action plans in accordance with clients’ situation, needs and interests, and has successfully provided professional services for clients in many cases of patent infringement and invalidation litigation. She is very good at combining investigations, court proceedings and litigation, in which she fully considers the legal stability of patent rights and assess the impact of patent infringement in an effective way. Meanwhile, she has written many applications for domestic enterprises, and received numerous favorable comments from clients on the construction of patent layout and the scope of patent protection.
After founding Origintelligence, Ms. Liu has handled nearly 100 cases of patent infringement and invalidation litigation, mainly medical chemistry cases, including some difficult and classic cases. Some of them were evaluated as iconic cases of intellectual property rights. Moreover, she has advised nearly 50 cases on FTO analysis, validity analysis, authorized prospective analysis, patent layout and trade secret analysis.
Prior to founding Origintelligence, Ms. Liu was a former partner and patent consultant at JINCHENG TONGDA & NEAL Law Office. She had provided versatile patent-related legal services in various fields (including pharmaceutical, chemical engineering, electronics and mechanics, etc.) for international and domestic enterprises. Ms. Liu had dealt with 60 cases of patent infringements, patent invalidity, patent ownership and trade secrets, some of which were evaluated as typical cases of intellectual property rights. Moreover, she had advised nearly 100 cases on patent-related legal matters including freedom-to-operate, infringement analysis, validity analysis, authorized prospective analysis, patentability and patent strategy.
Ms. Liu’s intellectual property career can be tracked back in 2002, when she worked at the China National Intellectual Property Administration (CNIPA) for seven years. Owing to her outstanding performance in working, she was selected to be as a people’s juror in the Beijing First Intermediate People’s Court, where she participated in nearly 120 cases concerning patent reexamination, invalidation and infringement.
During working at CNIPA, Ms. Liu served as the director of organic chemistry office. At that position, she accumulated rich experience in patent examination of domestic and PCT patent applications, as well as unique literature retrieval and analysis ability. Altogether, she dealt with more than 600 patent applications, and also given lectures of patent search for junior patent examiner for several years.
Ms. Liu has published numerous influential articles on intellectual property rights in the core journals.
Recent Case
● Patent invalidation and infringement litigation
• Representing Hengrui Medicine, successfully declared that a series of patents of Tafloprost eye drops owned by Japan santen Pharmaceutical invalid in whole; One of them was selected into the top ten cases of the Patent Reexamination board in 2018.
• Representing Qilu Pharmaceutical, successfully revoke the decision maintaining the validity of the gold award patent of "Cinepazide Pharmaceutical Composition", 2018.
• Representing Hengrui Medicine, successfully declared that the patent of Apatinib crystal form owned by Shanghai Xuanchuang Biotechnology invalid in whole; The case was selected into the top ten cases of the Patent Reexamination board in 2017.
• Representing Qilu Pharmaceutical, successfully declared that the a series of patents of Cinepazide maleate crystal form and the preparation method thereof owned by Sihuan Pharmaceutical invalid in whole.
• Representing Qilu Pharmaceutical, sued the Patent Reexamination Board for the patent administrative litigation of "Nitrogen oxides of cinepazide" and successfully revoked the invalid decision on the ground of untrue experimental data.
• Representing Qilu Pharmaceutical, successfully declared the patent of Solifenacin owned by Astella Pharma invalid in whole.
• Representing a pharmaceutical company, successfully declared that the Merck's patent of Etoricoxib crystal form invalid in whole.
• Representing a pharmaceutical company, successfully declared that patent of the crystal form D-Rabeprazole Sodium Monohydrate owned by Jiangsu Chengxin Pharmaceutical invalid in part.
• Representing a pharmaceutical company, successfully declared that patents of Ibuprofen Injection held by Xi 'an Tianyi Qinkun Pharmaceutical invalid in whole
• Representing Samsung Electronics, successfully declared that the patent of Dual Card Invention owned by Dual Sim Technology LLC invalid.
• Representing Niu Technologies, successfully declared the design patent of Niuniu Electric Vehicle invalid.
• Representing Wuhan Jingce Electronic, in response to the patent invalidation of its gold award, the case was successfully declared valid in court and has now taken effect.
• Representing Yonggui Electric Equipment, successfully declared the design patent of "electrical connector" invalid.
• Representing Wuxi Seemile, successfully responded to the patent invalidation request of the "three-dimensional terrain" patent filed by Edustar for many times, and maintained patents valid in whole.
• Representing Zhuhai Unitech, filed a patent infringement of "High Voltage Live Display Locking Device" against CYG Contron, won the first instance and successfully maintained the patent right valid.
• Representing Yanzhou Tiancheng, successfully declared a series of patents of epichlorohydrin process owned by Solvay. Four patents have been declared invalid, and all of them were maintained in the first instance.
• Representing a pharmaceutical company, successfully declared the patent of Erlotinib crystal owned by OSI invalid in part.
• Representing and mainly participated in Shanxi Zhendong Taisheng and responded to Hu Xiaoquan's patent infringement and patent invalidation case of "disodium adenosine triphosphate magnesium chloride freeze-dried powder injection". The infringement retrial case was selected into the top ten typical cases of the Supreme Court in 2012.
• Representing Bayer, sued Nanjing Shilang for patent infringement of "moxifloxacin" drug, which won the first instance and came into effect. The case was selected into the top 10 typical intellectual property cases of Jiangsu High Court in 2011.
• Representing Zhejiang Yonggui Electric Equipment, responded to the patent infringement case of electrical connectors of Harting Company of Germany, which was selected into the top ten intellectual property cases of Beijing High Court in 2014.
• Participated in the case of Hainan Kanglian Pharmaceutical Co., Ltd. sued Zhengda Tianqing Adefovir Dipivoxil for the confirmation of Patent Non-infringement, and settled the case at first instance. This is the first case of crystal form patent infringement in China.
• Mainly participated in Bayer's administrative litigation against the Patent Reexamination Board for patent invalidation of Yasmin, and the first-instance judgment revoked the invalidation decision, the second-instance judgment maintained.
• Mainly participated in Bayer's response to Wang Xiurong's patent invalidation of Nexvar compound, and successfully maintained the patent right invalid.
• Mainly participated in Zhejiang Wynca’s response to Zhejiang Jinfanda's declaration of patent invalidation of glyphosate process, and successfully maintained the patent right invalid.
• Representing GSK, successfully sued Qingdao Miuton for snoring patch patent infringement and won the first instance.
• Representing Zhuhai Unitech, successfully declared the patent of Nanjing Shengtai's patent of "grounding electromagnetic lock" invalid.
• Representing Ningbo Xunqiang, in response to the patent infringement of American sensor electronic "anti-theft label" and successfully declared the patent invalid in part.
• Representing Qingdao Hongda, successfully declared the patent owned by Savio and Oerlikon textile machinery invalid in whole.
● Patent layout (nearly 20 cases)
• Representing a company in Guangdong, conducted a special patent investigation on luminescence detection reagents.
• Representing a research institute, conducted a patent layout of 3D printing materials and printer patent search,.
• Representing a company in Jiangsu, conducted a patent layout of the existing technology of polymer and preparation method.
• Representing a company in Zhuhai, conducted a patent layout of intelligent catering.
● Patent validity/FTO analysis (nearly 100 cases)
• Representing many well-known domestic pharmaceutical enterprises, carried out patent search, validity analysis, FTO analysis and third-party opinions on active pharmaceutical ingredients, crystal forms, pharmaceutical preparations and uses.
• Representing dozens of internationally renowned pharmaceutical companies, analyzed the patent validity and FTO of active pharmaceutical ingredients, drugs, pharmaceuticals, uses and medical devices.
• Representing dozens of internationally renowned chemical enterprises, carried out patent search, patent validity analysis, FTO analysis, infringement analysis and third-party opinions on chemical products, preparation methods, catalysts, regeneration technologies and intermediates.
• Representing foreign famous solar photovoltaic module enterprises, conducted FTO analysis of two devices.
• Representing domestic famous battery enterprises, conducted FTO analysis of their lithium ion battery products.
● Trade secrets/anti-unfair competition
• Representing a well-known chemical company, conducted a trade secret analysis.
• Representing a chemical company, conducted a trade secret analysis.
• Representing a chemical enterprise, filed a criminal lawsuit against trade secrets and successfully won the case.
• Participated in a well-known chemical enterprise and responded to the second instance of trade secrets of the Supreme Court.
• Participated in an internationally renowned enterprise and filed a series of cases against unfair competition, copyright and patent infringement.
