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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What is the difference between an Invention Patent and a Utility Model Patent?
13 August 2021There 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 […]
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CHINA DIVISIONAL PATENT STRATEGY: Recent Judgment Narrows What Constitutes “Different Inventions” for Divisionals
6 December 2021In 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 […]
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FOLLOW UP: Amendments to the China Patent Examination Guidelines in 2022 – Part 1: New rules for designs in view of China signing onto the Hague Agreement
4 January 2023Since the publication of our earlier article about China signing onto the Hague Agreement, some of our Hong Kong clients have expressed interest in taking advantage of the Hague international design application system, i.e., filing a Hague international design application with the CNIPA (Chinese National Intellectual Property Administration) as a receiving office (RO). Up until […]
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Thin Disclosure but "Bulletproof" Protection: How a Salt Form Patent was Upheld in China Despite Minimal Data
8 January 2026In China, innovative drug companies typically rely on their initial composition of matter patents to block out competitors. Other “follow-on” IP, such as those directed towards formulations, polymorphs, and salt forms, are often regarded as less likely to survive invalidation challenges, especially in China where the standard of “person skilled in the art” is so […]
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