Assignee
BERG LLOYD
US192 patents
Top patents by PatentIndex Score
US5320715AJun 14, 1994
Separation of 1-pentanol from cyclopentanol by extractive distillation
BERG LLOYD341 citations99
US5445716AAug 29, 1995
Separation of ethanol from isopropanol by extractive distillation
BERG LLOYD98 citations96
US5437770AAug 1, 1995
Separation of ethanol from isopropanol by azeotropic distillation
BERG LLOYD91 citations96
US5423955AJun 13, 1995
Separation of propylene glycol from 1,2-butanediol by azeotropic
BERG LLOYD58 citations96
US5415741AMay 16, 1995
Separation of ethanol from isopropanol by azeotropic distillation
BERG LLOYD102 citations96
US5348625ASep 20, 1994
Separation of ethanol from isopropanol by extractive distillation
BERG LLOYD88 citations96
US4966658AOct 30, 1990
Recovery of ethylene glycol from butanediol isomers by azeotropic distillation
BERG LLOYD92 citations96
US4935102AJun 19, 1990
Separation of 2,3-butanediol from propylene glycol by azeotropic distillation
BERG LLOYD58 citations96
US4569726AFeb 11, 1986
Process for the separation of ethyl acetate from ethanol and water by extractive distillation
BERG LLOYD148 citations96
US4379028AApr 5, 1983
Separation of ethyl acetate from ethanol and water by extractive distillation
BERG LLOYD240 citations96
US5425853AJun 20, 1995
Separation of propylene glycol from ethylene glycol by azeotropic distillation
BERG LLOYD36 citations93
US5160412ANov 3, 1992
Dehydration of acetic acid by azeotropic distillation
BERG LLOYD24 citations93
US4654123AMar 31, 1987
Dehydration of ethanol by extractive distillation
BERG LLOYD48 citations93
US4514262AApr 30, 1985
Separation of benzene from non-aromatic hydrocarbons by extractive distillation
BERG LLOYD29 citations93
US5085739AFeb 4, 1992
Separation of the propyl alcohols from water by azeotropic or extractive distillation
BERG LLOYD28 citations92
US5084142AJan 28, 1992
Separation of tertiary butyl alcohol from water by azeotropic or extractive distillation
BERG LLOYD22 citations92
US4693788ASep 15, 1987
Separation of t-amyl alcohol from isobutanol by extractive distillation
BERG LLOYD41 citations89
US4756803AJul 12, 1988
Separation of 2-butanol from t-amyl alcohol by extractive distillation
BERG LLOYD19 citations82
US4666563AMay 19, 1987
Separation of isopropyl ether from isopropanol and water by extractive distillation
BERG LLOYD21 citations82
US4661209AApr 28, 1987
Separation of methyl t-butyl ether from hydrocarbons by extractive distillation
BERG LLOYD19 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
US4363704ADec 14, 1982
Separation of toluene from non-aromatic hydrocarbons by extractive distillation
BERG LLOYD23 citations82
US4584063AApr 22, 1986
Separation of acetone from methanol by extractive distillation
BERG LLOYD22 citations81
US5458741AOct 17, 1995
Separation of benzene from close boiling hydrocarbons by extractive distillation
BERG LLOYD12 citations74
US5453166ASep 26, 1995
Separation of ethanol from 2-butanone by extractive distillation
BERG LLOYD14 citations74
US5447608ASep 5, 1995
Separation of 2-pentanol, 3-methyl-2-butanol and 1-butanol by azeotropic distillation
BERG LLOYD7 citations74
US5425855AJun 20, 1995
Separation of ethyl benzene from p-xylene by extractive distillation
BERG LLOYD9 citations74
US5417814AMay 23, 1995
Separation of 3-methyl-2-butanol from 2-pentanol by extractive distillation
BERG LLOYD7 citations74
US5417813AMay 23, 1995
Separation of 1-butanol from 2-pentanol by azeotropic distillation
BERG LLOYD12 citations74
US5407542AApr 18, 1995
Separation of 3-methyl-2-butanol from 1-butanol by azeotropic distillation
BERG LLOYD7 citations74
US5405505AApr 11, 1995
Separation of benzene from close boiling hydrocarbons by azeotropic distillation
BERG LLOYD8 citations74
US5401366AMar 28, 1995
Separation of 1-butanol from 2-pentanol by extractive distillation
BERG LLOYD9 citations74
US5360520ANov 1, 1994
Separation of 2-butanol from t-amyl alcohol by extractive distillation
BERG LLOYD7 citations74
US5358608AOct 25, 1994
Separation of 1-propanol from 2-butanol by extractive distillation
BERG LLOYD8 citations74
US5338410AAug 16, 1994
Separation of 2-butanol from t-amyl alcohol by azeotropic distillation
BERG LLOYD9 citations74
US5338411AAug 16, 1994
Separation of ethanol from isopropanol by azeotropic distillation
BERG LLOYD8 citations74
US5332478AJul 26, 1994
Separation of 1-propanol from 2-butanol by azeotropic distillation
BERG LLOYD15 citations74
US5207876AMay 4, 1993
Separation of tetrachloroethylene from the lower alcohols by extractive distillation
BERG LLOYD11 citations74
US5196094AMar 23, 1993
Separation of 1,1,1-trichloroethane from the lower alcohols by extractive distillation
BERG LLOYD7 citations74
US5167774ADec 1, 1992
Dehydration of acetic acid by extractive distillation
BERG LLOYD14 citations74
US5154800AOct 13, 1992
Dehydration of acrylic acid by extractive distillation
BERG LLOYD15 citations74
US5152876AOct 6, 1992
Separation of methylene chloride from the lower alcohols by extractive distillation
BERG LLOYD9 citations74
US5151160ASep 29, 1992
Dehydration of 2-methoxyethanol by extractive distillation
BERG LLOYD12 citations74
US5106460AApr 21, 1992
Separation of 1,1,1-trichloroethane from N-hexane by extractive distillation
BERG LLOYD7 citations74
US5100514AMar 31, 1992
Separation of pyridine from water by extractive distillation
BERG LLOYD13 citations74
US5094723AMar 10, 1992
Separation of m-xylene from p-xylene or o-xylene by extractive distillation with alcohols
BERG LLOYD7 citations74
US5092966AMar 3, 1992
Separation of methylene chloride from ethyl ether by extractive distillation
BERG LLOYD10 citations74
US5069756ADec 3, 1991
Separation of cyclohexane from cyclohexene by azeotropic or extractive distillation
BERG LLOYD14 citations74
US5051153ASep 24, 1991
Separation of methylene chloride from methylal by extractive distillation
BERG LLOYD7 citations74
Showing the top 50 of 192 patents by PatentIndex Score.