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Wilfried Niemeier
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Krefeld, DE
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last 30 patents
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Patent Grant
Process for producing aliphatic diols
Patent number
6,037,504
Issue date
Mar 14, 2000
Bayer Aktiengesellschaft
Gerhard Darsow
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing isocamphyl cyclohexanoles
Patent number
6,031,140
Issue date
Feb 29, 2000
Bayer Aktiengesellschaft
Gerhard Darsow
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing a mixture of cyclohexylamine and dicyclohexyl...
Patent number
5,728,883
Issue date
Mar 17, 1998
Bayer Aktiengesellschaft
Gerhard Darsow
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing a mixture of cyclohexylamine and dicyclohexyl...
Patent number
5,705,700
Issue date
Jan 6, 1998
Bayer Aktiengesellschaft
Gerhard Darsow
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalyst for the preparation of aniline
Patent number
5,304,525
Issue date
Apr 19, 1994
Bayer Aktiengesellschaft
Otto Immel
C07 - ORGANIC CHEMISTRY