Inventor

MELCHER RICHARD G

US9 patents

Patents

9 patents

US4775476AOct 4, 1988

Method for membrane assisted liquid chromatography

DOW CHEMICAL CO31 citations92

US4819478AApr 11, 1989

Membrane assisted flow injection analysis

DOW CHEMICAL CO36 citations91

US5221477AJun 22, 1993

Apparatus and method for reversed permeation membrane extraction of compounds from sample solutions

DOW CHEMICAL CO29 citations90

US4962042AOct 9, 1990

Method for on-column injection gas chromatography

DOW CHEMICAL CO54 citations90

US4913821AApr 3, 1990

Method for the determination of phenols in water

DOW CHEMICAL CO46 citations89

US5124042AJun 23, 1992

Method for the determination of the degree of neutralization of phenol

DOW CHEMICAL CO7 citations73

US4999105AMar 12, 1991

Apparatus for membrane assisted liquid chromatography

DOW CHEMICAL CO8 citations73

US5229300AJul 20, 1993

Membrane method for the determination of an organic acid

DOW CHEMICAL CO11 citations70

US3967928AJul 6, 1976

Method for quantitatively analyzing substances containing elements other than carbon, hydrogen and oxygen and volatile organic compounds

DOW CHEMICAL CO13 citations69