Dr. Jacqueline Lui, Managing Director of Eagle IP Limited, gave a talk on “Patent Protection & Strategy: What a Startup Company Should Know” at the Pi Centre of The Chinese University of Hong Kong.

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US vs CN: Foreign Filing License Requirements

9 November 2022
In China, foreign filing requirements are generally very similar to the US — a foreign filing license is required if a foreign application is to be filed first for an invention made in the country. The Chinese equivalent to the US foreign filing license is called a confidentiality examination for foreign filing. According to Chinese […]

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. […]

The Latest on Post-Filing Data in China’s Patent Law

29 April 2020
Post-filing data can sometimes be the crucial difference between a patent allowance and a final rejection. The reasons are endless why important data may not have been included in the original patent application as filed. Time and budget may have been insufficient to generate data over the full scope of the claims at the time […]

Everything you need to know about Patent Term Adjustment (PTA) in China

7 May 2024
We previously discussed patent term compensation for patent office delay (‘Patent Term Adjustment’ or ‘PTA’) when such new system was introduced in the Fourth Amendment of the Chinese Patent Law (2020), as well as in the different versions of the Draft Examination Guidelines released in 2021 and 2022. In this article, we consolidate everything you need to […]
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