Ms Hu Honghui

Hu Honghui

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Intellectual Property

Assessing non-obviousness in improvement drug invention patents
China | 18 November 2019

Drug invention patents protect multiple types of invention, including compounds, crystal forms, dosage forms, preparation methods and uses. Nonetheless, in practice, it is difficult to patent improvement drug inventions in China. In proving the patentability of such an invention, patentees often face difficulties in establishing its non-obviousness (inventiveness).