On August 26 - 28, 2026, the 4th Chemical IP and Innovation Development Forum (CIPIDF), which is jointly hosted by Qingdao Zhiwen Media Technology Co. and IP Gather Together, is convened in Shanghai.
Themed “Practice · Value · Gloabalisation”, the Forum has a full house of attendees from a wide range of industries including petrochemicals, fine chemicals, nascent materials, agrochemicals, API, pharmaceutical intermediate and chemical equipment. The event features three topics: “Trade Secret Protection”, “Patent Defence/Offense, High Damages, Corporate Compliance in Going Global and AI” and “Agrochemical FTO & Infringement, Boundary of Crystal Patent & Strategy Surrounding Building Portfolio of New Material Patent”.
On August 27, TANG Tiejun, Partner of Wanhuida Intellectual Property share insights on “Burden of Proof in Method Patent Infringement Disputes”. Ms. Tang prepares the floor on the legislative framework regarding burden of proof in patent infringement suits, then delves into the selected judicial precedents on method patent infringement disputes and concludes with key takeaways helping litigating parties navigate various complex scenarios.
TANG Tiejun speaking
The firm’s Associate GUAN Yue moderates the roundtable discussion featuring “Building Patent Portfolio and Mitigating Compliance Risks in Going Global”. Fellow panelists include in-house counsels from major new material suppliers and a veteran practitioner from a prestigious US law firm.
GUAN Yue (L2)
The firm’s Partner Shi Liyan, Patent Attorney Xie Fei and Paralegal Wang Penglin also attend the summit.
Wanhuida delegation (L to R, Xie Fei, Guan Yue, Tang Tiejun, Shi Liyan & Wang Penglin)