Recently, the invention patent of Three Gorges Pharmaceuticals Co. Ltd has been authorized by the State Intellectual Property Office (Patent number: ZL201510999448.3). It is “a method for extracting neomycin from neomycin fermentation broth”, which can solve the environmental protection problem in neomycin production, making the new extraction process of neomycin sulfate more energy-efficient inclean production.

　　Up to now, 8 out of the 12 invention patents obtained by the company are on neomycin sulfate, which have strengthened the protection of the company’s scientific and technological achievements, and madeits neomycin sulfate products more competitive. （Correspondent: Zhu Lijuan）