A few days ago, another invention patent of Qiyuan Pharmaceutical was authorized by the State Intellectual Property Office. The name of this patent is "A Preparation Method of Vitamin C Phosphate".

As of December 31, 2019, Qiyuan Pharmaceutical has applied for 96 invention patents in the field of biological fermentation, and has 25 valid invention patents, covering the R&D and production of tetracycline product series, erythromycin product series, and vitamin C product series The whole process. Among them: In 2019, the company applied for 10 invention patents and obtained 3 authorized invention patents. The continuous accumulation of intellectual property rights has further enhanced the core competitiveness and brand influence of the enterprise.