Dr. Jacqueline Lui, President of Eagle IP Group, Managing Director of Chau Eagle Global IP, attent the IPO Annual Meeting in San Francisco.

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How to Protect a Crystal Form (Polymorph) Patent in China

4 June 2025
Crystalline forms are critical to pharmaceutical patents, offering extended protection for improved stability, bioavailability, or manufacturability. However, securing such patents in China has grown increasingly difficult due to the China National Intellectual Property Administration (CNIPA)’s strict patentability criteria. Unlike the U.S. or Europe, where structural novelty or problem-solving utility may suffice, China demands quantifiable evidence of […]

China Forges Ahead with Draft Measures for New Patent Linkage System

19 October 2020
Update! The finalized Implementation Measures are now out. You can read the details here: Breaking: China Released New Implementation Measures for the New Patent Linkage System Last month September 11, 2020, China’s National Medical Products Administration (NMPA) and the China National Intellectual Property Administration (CNIPA) jointly issued a draft set of measures for public opinion […]

China Releases Draft Implementation Guidelines for the Drug Administration Law

2 June 2022
The latest draft implementation guidelines for China’s Drug Administration Law (“Guidelines”) are out and open for comment. Previously, the new implementation measures for early dispute resolution mechanisms for drug patents (“Patent Linkage Measures”) came into effect on July 4, 2021. The Guidelines indicate that the final approval of generic chemical drug applications for marketing approval […]
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Polymorph Patents in China: What is the Standard for Inventiveness for New Crystal Forms?

14 July 2020
This case is focused on polymorphs, namely what are the standards for novelty and inventiveness when it comes to new crystal forms of a known drug? A recent Supreme People’s Court decision in China is illustrative of the way Chinese courts are thinking about polymorph patents in China. Grünenthal is a German pharmaceutical company and […]
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