Dr. Jacqueline Lui, President of Eagle IP Group, gave a talk titled “Patent War : A Case Study on the Viagra China Patent” at the HKBMIA Happy Hour event.
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Polymorph Patents in China: What is the Standard for Inventiveness for New Crystal Forms?
14 July 2020This 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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China Releases Details on Patent Term Extension, Deferred Examination and More in the Latest Draft Implementation Rules of the New Chinese Patent Law
11 December 2020The China National Intellectual Property Administration (CNIPA) is moving forward at breakneck speeds aiming to get all the necessary pieces in place for the June 1, 2021 date when the new 4th Amendment of the Patent Law will come into effect. Most recently, this means a flurry of drafts coming out from CNIPA, including, but […]
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CHINA: New Patent Examination Guidelines Now Available for Public Comment
4 August 2021Two months after the new Chinese Patent law came into effect, the CNIPA has released a new set of Patent Examination Guidelines (proposed version) for public comments on Aug 3, 2021. Here are the explanation of the amendments (Chinese only). Here is the full set of proposed amendments (Chinese only). Briefly, the new amendment focuses […]
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The Secret Prior Art Trap: A Case Study on Conflicting Applications in China
13 November 2025In patent prosecution, the concept of a "conflicting application" or “secret prior art” plays a critical role in determining the patentability of an invention. This article explores the framework for assessing conflicting applications under Chinese patent law, with a comparative perspective on the approaches adopted in the United States. Case Background: The Image Encoding Dispute […]
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