What are the national patented drugs in Chen Benshan?

The following three invention patents have been authorized.

[Invention] Pharmaceutical composition for treating acne and chloasma -2004 1004 160.4

Applicant: Yunnan Benshan Pharmaceutical Co., Ltd.-Inventor: Chen Benshan. ...

[Invention] A medicine for invigorating spleen and regulating stomach, promoting digestion and resolving food stagnation-200410034161.9.

Applicant: Yunnan Benshan Pharmaceutical Co., Ltd.-Inventor: Chen Benshan. ...

[Invention] Pharmaceutical composition for treating pain -2004 10034 162.3

Applicant: Yunnan Benshan Pharmaceutical Co., Ltd.-Inventor: Chen Benshan. ...