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China’s utility model growing pains

Peter Leung, Hong Kong


Critics of China’s patent system often point to the proliferation of utility models as a sign of low patent quality, but research from the Intellectual Property Publishing House shows even among utility models, there is variation in quality

China grabbed headlines last year as it became the world’s most prolific patent filer. Sceptics however were quick to note that a large percentage of these patents were utility models which require no substantive examination. According to data from SIPO,...


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