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Indobufen-crystal patent faces new challenge in China despite past failures

By MLex Staff ( July 22, 2025, 07:35 GMT | Insight) -- A pharmaceutical patent held by Hangzhou Zhongmei Huadong Pharmaceutical — upheld multiple times over the past year by China’s intellectual property authority despite repeated invalidation attempts — is now facing a fresh challenge from a local drugmaker.A pharmaceutical patent held by Hangzhou Zhongmei Huadong Pharmaceutical — upheld multiple times over the past year by China’s intellectual property authority despite repeated invalidation attempts — is now facing a fresh challenge from a local drugmaker....

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