Inventor
ENGEBRECHT RONALD H
US4 patents
Patents
4 patentsUS5245021ASep 14, 1993
14-crown-4-ether derivatives
EASTMAN KODAK CO2 citations60
US5132436AJul 21, 1992
Intermediates for making 14-crown-4-ether derivatives
EASTMAN KODAK CO5 citations60
US4152159AMay 1, 1979
Acid-resistant copolymer and photographic element incorporating same
EASTMAN KODAK CO6 citations60
US5188802AFeb 23, 1993
Dry analytical element for lithium assay
EASTMAN KODAK CO4 citations59