Four herbicide patents will expire in China in 2014

Summary: In China, five herbicide patents registered in 1994 will expire in 2014: benzobicylon, fentrazamide, pyribenzoxim and monosulfuron-ester.In China, four herbicide compound patents(benzobicylon, fentrazamide, pyribenzoxim, monosulfuron-ester),...

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