Dr. Jacqueline Lui, President of Eagle IP Group, gave a talk titled “Are Patents Enforceable in China?” at The 9th IP Seminar.

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China Patent Office (CNIPA) Releases More Details About Patent Term Adjustment (PTA) in the Draft Examination Guidelines

19 October 2021
The new 4th Amendment of the Chinese Patent Law came into effect on June 1, 2021. Right before that date, the Chinese Patent Office (“CNIPA”) released some “Interim Measures” to give us a taste of what was to come, though they have yet to released the actual Implementation Rules. Two months later, CNIPA finally released […]

No % homology? How to craft allowable claim scope around sequences to comply with China’s strict written description requirements

23 November 2018
Since 2010, the Patent Re-examination Board (PRB) has published the top 10 patent invalidation cases of the year in April of each year. The selection criteria are high social concern, significant impact on the related industry, or involve difficult legal issues and important examination criteria. Below is one of the top 10 cases that discusses […]

China’s Newest Examination Guidelines: Post-Filing Supplemental Data for Compounds (Part I)

28 April 2021
Post-filing data in China has been a constant issue for many patent practitioners around the world. Examiners seem to require it often, and yet the rules regarding when it is acceptable have seemed much stricter than other jurisdictions worldwide. In fact, we tried to summarize the latest state of the law in an earlier blog […]

Do Promotional Marketing Materials Constitute an “Offer for Sale” under Chinese Patent Law? Bayer IP GmbH v. Nanjing Hang Seng Pharmaceutical

12 December 2023
Bayer'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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