What Microsoft’s Recent Patent Invalidation Case in China Teaches Us About User Interface Patents

29 January 2026

Each year the CNIPA publishes its Top Ten Patent Re-examination and Invalidation Cases for the previous year. These cases are meant to be guiding cases, showcasing exemplary real-world decisions that clarify certain aspects of the law. Today we’ll be sharing about one of the Top 10 Invalidation Cases in 2024 involving Microsoft (China) Co., Ltd. […]

Beijing Supreme People’s Court Upholds Novo Nordisk Semaglutide Patent in China based on Post-Filing Data

23 January 2026

On December 31, 2025, The Supreme People's Court upheld the Beijing IP Court's decision, meaning that the semaglutide patent remains valid and will expire on March 20, 2026. Novo Nordisk announced this positive news via a press release on the day the case was decided. The Chinese Ministry of Commerce has also confirmed this decision […]

Thin Disclosure but "Bulletproof" Protection: How a Salt Form Patent was Upheld in China Despite Minimal Data

8 January 2026

In China, innovative drug companies typically rely on their initial composition of matter patents to block out competitors. Other “follow-on” IP, such as those directed towards formulations, polymorphs, and salt forms, are often regarded as less likely to survive invalidation challenges, especially in China where the standard of “person skilled in the art” is so […]