Inventor

CHANG MIN-SUN

KR2 patents

Patents

2 patents

US6583147B1Jun 24, 2003

Pyrazolopyrimidinone derivatives for the treatment of impotence

DONG A PHARM CO LTD16 citations77

US6844436B2Jan 18, 2005

Preparing pyrazolopyrimidinone derivatives for the treatment of impotence

DONG A PHARM CO LTD0 citations36