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Patent applications and USPTO patent grants for Hefner; Werner.The latest application filed is for "working up a mixture comprising alkene and oxygen".
Patent | Date |
---|---|
Working up a mixture comprising alkene and oxygen Grant 6,712,942 - Teles , et al. March 30, 2 | 2004-03-30 |
Working up a mixture comprising alkene and oxygen App 20030004387 - Teles, Joaquim Henrique ;   et al. | 2003-01-02 |
Catalyst and process for purifying streams of materials Grant 6,204,218 - Flick , et al. March 20, 2 | 2001-03-20 |
Removing CO.sub.2 and, if necessary, H.sub.2 S from gases Grant 4,999,031 - Gerhardt , et al. March 12, 1 | 1991-03-12 |
Removal of CO.sub.2 and/or H.sub.2 S from gases Grant 4,997,630 - Wagner , et al. * March 5, 1 | 1991-03-05 |
Separation of a C.sub.4 -hydrocarbon mixture essentially containing n-butenes and butanes Grant 4,569,725 - Lindner , et al. February 11, 1 | 1986-02-11 |
Removal of CO.sub.2 and/or H.sub.2 S from gases Grant 4,551,158 - Wagner , et al. November 5, 1 | 1985-11-05 |
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