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Wulf Schwerdtel
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Leverkusen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Process for working up crude liquid vinyl acetate
Patent number
4,934,519
Issue date
Jun 19, 1990
Bayer Aktiengesellschaft
Gunter Wolf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalyst, a process for its preparation and an isomerization proces...
Patent number
4,548,913
Issue date
Oct 22, 1985
Bayer Aktiengesellschaft
Wulf Schwerdtel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of propylene oxide
Patent number
RE31381
Issue date
Sep 13, 1983
Bayer Aktiengesellschaft
Gunter Prescher
549 - Organic compounds
Information
Patent Grant
Process for the preparation of propylene oxide
Patent number
RE30945
Issue date
May 25, 1982
Bayer AG
Guter Prescher
549 - Organic compounds
Information
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
Information
Patent Grant
Process for preparing aldehydes and diols
Patent number
4,293,717
Issue date
Oct 6, 1981
Bayer Aktiengesellschaft
Helmut Waldmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of hexahydrophthalic acid anhydride
Patent number
4,244,877
Issue date
Jan 13, 1981
Bayer Aktiengesellschaft
Kurt Halcour
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of anthraquinone
Patent number
4,220,597
Issue date
Sep 2, 1980
Bayer Aktiengesellschaft
Kurt Halcourt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the hydroxylation of phenol
Patent number
4,214,105
Issue date
Jul 22, 1980
Bayer Aktiengesellschaft
Hermann Seifert
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of polyhydric phenols
Patent number
4,182,918
Issue date
Jan 8, 1980
Bayer Aktiengesellschaft
Hermann Seifert
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of polyhydric phenols
Patent number
4,182,917
Issue date
Jan 8, 1980
Bayer Aktiengesellschaft
Hermann Seifert
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the hydroxylation of phenols and phenol ethers in the n...
Patent number
4,174,460
Issue date
Nov 13, 1979
Bayer Aktiengesellschaft
Hermann Seifert
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of propylene oxide
Patent number
4,137,242
Issue date
Jan 30, 1979
Bayer Aktiengesellschaft
Gunter Prescher
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Gas phase aromatic hydrogenation using palladium lithium aluminum s...
Patent number
4,115,462
Issue date
Sep 19, 1978
Bayer Aktiengesellschaft
Hermann Thelen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of propylene oxide
Patent number
4,113,747
Issue date
Sep 12, 1978
Bayer Aktiengesellschaft
Gunter Prescher
C07 - ORGANIC CHEMISTRY