2. Yang Depo, Hu Haiyan, Gan Liangchun. Film coated pellet preparation of Hypericum perforatum extract and its preparation process, patent number ZL 02 149750.8, patent grant date June 22, 2005.
3. Yang Depo, Wang Fasong, Huang Yadong, Hu Haiyan. A preparation method of Hypericum perforatum extract, patent number ZL02 134380.2, patent grant date August, 2005.17.
4. Yang Depo, Bai Jie, Wu, Hu Haiyan. Application of Forsythia longicalyx in preparation of medicines, patent number ZL 200310117528.9, patent granted on March 22, 2006.
5. Yang Depo, Bai Jie, Wu, Hu Haiyan. Application of Forsythia longicalyx in preparation of health food, patent number ZL2005 10 106258.0 Patent granted on June, 2007.13.
6. Yan, Hu Haiyan, Sang Hanfei, Leng Tiandong, Liu Ailing, Huang Yijun, Zhang, Qiu Pengxin. Application of cholestane -3β, 5α, 6β- triol in preparation of neuron protective drugs, patent application number 2008 10 198703.4.
7. Yan, Ding Qing, Hu Haiyan. Preparation of compound Jiangzhi capsule, patent application number is 2007 10066048.2.
8. Xu,,, Chen Bao, Hu Haiyan. A Chinese medicinal cataplasm for treating asthma and its preparation method are provided. The patent application number is 2004 1009 1835.9.