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Gerd Siekmann
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Cologne, DE
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last 30 patents
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Patent Grant
Process for the preparation of 2-(4-chlorophenylethyl)-2-tert.-buty...
Patent number
4,988,829
Issue date
Jan 29, 1991
Bayer Aktiengessellschaft
Paul Fiedler
C07 - ORGANIC CHEMISTRY
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Patent Grant
Process for the preparation of percarboxylic acid solutions
Patent number
4,344,897
Issue date
Aug 17, 1982
Bayer Aktiengesellschaft
Ralf Goedecke
C07 - ORGANIC CHEMISTRY
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Patent Grant
Process for the manufacture of very pure .epsilon.-caprolactone
Patent number
4,313,879
Issue date
Feb 2, 1982
Degusa AG
Herbert Klenk
C07 - ORGANIC CHEMISTRY