Inventor
JEONG NAK C
KR3 patents
Patents
3 patentsUS5300511AApr 5, 1994
Spiro-benzopyran derivatives and useful for treating asthma and hypertension
KOREA RES INST CHEM TECH6 citations70
US5236935AAug 17, 1993
Benzopyran derivatives and processes for the preparation thereof
KOREA RES INST CHEM TECH12 citations70
US5493029AFeb 20, 1996
Certain pyridyl-benzopyran derivatives
KOREA RES INST CHEM TECH2 citations59