Dr. Jacqueline Lui, President of Eagle IP Limited, gave a lecture to the students of the LLM course at the City University of Hong Kong.
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How to Protect a Crystal Form (Polymorph) Patent in China
4 June 2025Crystalline 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 […]
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Do Promotional Marketing Materials Constitute an “Offer for Sale” under Chinese Patent Law? Bayer IP GmbH v. Nanjing Hang Seng Pharmaceutical
12 December 2023Bayer's blockbuster drug Rivaroxaban has seen its share of patent litigations in China, several of which are big enough to be listed as Top 10 IP cases or 50 Representative IP cases. We summarized an invalidation case back in 2020 where all of Bayer’s claims directed towards the compound were upheld. Recently, another Rivaroxaban case […]
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Major and Exciting Changes to China’s Patent Law [Fourth Amendment to China's Patent Law]
20 February 2019Major changes are on the horizon for China’s Patent Law, which will see an overhaul in many areas as early as this year (2019). On January 4, 2019, the National People’s Congress in China published the latest draft of the Fourth Amendment to China’s Patent Law. Several draft amendments have been released for public comment […]
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CNIPA further clarifies how it counts “delays” when calculating Patent Term Adjustment (PTA) in the new Draft Examination Guidelines and how it affects international applicants
12 April 2023At the end of October 2022, the China National Intellectual Property Administration (CNIPA) released a new draft amendment of the Patent Examination Guidelines1 (hereinafter referred to as the “New Draft”) to the new Chinese Patent Law that came into effect in 2021. We highlight two key amendments below. 1. The starting date for calculating PTA […]
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