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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What is the difference between an Invention Patent and a Utility Model Patent?

13 August 2021
There are two types of patent protection in China. Invention patents (similar to a US utility patent) have a term of 20 years from the date of filing and may be granted for both methods and products. Utility model patents (similar to a petty patent) may be granted in China for technical solutions that relate […]

CHINA DIVISIONAL PATENT STRATEGY: Recent Judgment Narrows What Constitutes “Different Inventions” for Divisionals

6 December 2021
In China, patents applicants take advantage of a commonly-used divisional filing strategy to achieve a fine-tuned balance between protection scope and protection period (if used properly). Patent applicants (especially foreign applicants) widely welcome this well-established strategy, and up until now, have used it with much success. In fact, we recommend this strategy and have even […]

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 […]

Narrow Claim Scope of a Chinese Utility Model Patent Fuels Design-Arounds by Failing to Curb Competing Products:

28 October 2020
Learning from a 2019 China’s Top 50 Representative IP Case The number of patent applications in China is now the highest in the world, with more than half the applications filed as utility model applications (UMs). For example, there were more than 2 million UMs filed in 2018 alone (for the difference between a utility […]
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