Inventor
YEH AN-I
US35 patents
⚠️ This page may combine multiple inventors who share the name “YEH AN-I”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BERG LLOYD
34 patentsUS4654123AMar 31, 1987
Dehydration of ethanol by extractive distillation
BERG LLOYD48 citations93
US4666563AMay 19, 1987
Separation of isopropyl ether from isopropanol and water by extractive distillation
BERG LLOYD21 citations82
US4525245AJun 25, 1985
Separation of n-butyl acetate from n-butanol by extractive distillation
BERG LLOYD25 citations82
US4488937ADec 18, 1984
Separation of m-xylene from o-xylene by extractive distillation
BERG LLOYD19 citations82
US4826576AMay 2, 1989
Separation of isopropyl acetate from isopropanol by extractive distillation
BERG LLOYD9 citations74
US4735690AApr 5, 1988
Dehydration of impure formic acid by extractive distillation
BERG LLOYD15 citations74
US4724049AFeb 9, 1988
Separation of isobutyl acetate from isobutanol by extractive distillation
BERG LLOYD9 citations74
US4718988AJan 12, 1988
Separation of 2-butyl acetate from 2-butanol by extractive distillation
BERG LLOYD8 citations74
US4676875AJun 30, 1987
Separation of m-xylene from o-xylene by extractive distillation
BERG LLOYD7 citations74
US4676872AJun 30, 1987
Separation of m-xylene from o-xylene by extractive distillation with adiponitrile and mixtures thereof
BERG LLOYD8 citations74
US4676874AJun 30, 1987
Separation of n-propyl acetate from n-propanol and water by extractive distillation
BERG LLOYD9 citations74
US4673465AJun 16, 1987
Separation of m-xylene from o-xylene by extractive distillation with polychloro compounds
BERG LLOYD7 citations74
US4670106AJun 2, 1987
Separation of n-amyl acetate and water from n-amyl alcohol by extractive distillation
BERG LLOYD7 citations74
US4642167AFeb 10, 1987
Separation of isobutyl acetate from isobutanol by extractive distillation
BERG LLOYD7 citations74
US4642166AFeb 10, 1987
Dehydration of formic acid by extractive distillation
BERG LLOYD10 citations74
US4631115ADec 23, 1986
Dehydration of ethanol by extractive distillation
BERG LLOYD16 citations74
US4597834AJul 1, 1986
Separation of methyl acetate from methanol by extractive distillation
BERG LLOYD6 citations74
US4592805AJun 3, 1986
Separation of n-propyl acetate from n-propanol by extractive distillation
BERG LLOYD9 citations74
US4585526AApr 29, 1986
Separation of m-xylene from o-xylene by extractive distillation
BERG LLOYD6 citations74
US4551207ANov 5, 1985
Separation of isopropyl ether from acetone by extractive distillation
BERG LLOYD6 citations74
US4549938AOct 29, 1985
Separation of methanol from methyl acetate by extractive distillation
BERG LLOYD7 citations74
US4543164ASep 24, 1985
Separation of methyl acetate from methanol by extractive distillation
BERG LLOYD10 citations74
US4510022AApr 9, 1985
Separation of isopropyl ether from isopropanol and water by extractive distillation
BERG LLOYD10 citations74
US4507176AMar 26, 1985
Separation of n-butyl acetate from n-butanol by extractive distillation
BERG LLOYD14 citations74
US4501645AFeb 26, 1985
Separation of methanol from acetone by extractive distillation
BERG LLOYD13 citations74
US4459178AJul 10, 1984
Separation of isopropyl ether from methyl ethyl ketone by extractive distillation
BERG LLOYD8 citations74
US4459179AJul 10, 1984
Separation of isopropyl ether from acetone by extractive distillation
BERG LLOYD10 citations74
US4822947AApr 18, 1989
Separation of m-xylene from o-xylene by extractive distillation with DMSO
BERG LLOYD6 citations63
US4738755AApr 19, 1988
Separation of m-xylene from o-xylene by extractive distillation
BERG LLOYD5 citations63
US4693789ASep 15, 1987
Separation of isopropyl acetate from isopropanol by extractive distillation
BERG LLOYD5 citations63
US4690734ASep 1, 1987
Separation of n-amyl acetate from n-amyl alcohol by extractive distillation
BERG LLOYD5 citations63
US4566948AJan 28, 1986
Separation of isopropyl ether from isopropanol and water by extractive distillation
BERG LLOYD4 citations63
US4544454AOct 1, 1985
Separation of isopropyl ether from methyl ethyl ketone by extractive distillation
BERG LLOYD3 citations63
US4670105AJun 2, 1987
Dehydration of propanoic acid by extractive distillation
BERG LLOYD1 citations52