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Hans-Jurgen Hansen
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Riehen, CH
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last 30 patents
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Patent Grant
Process for the manufacture of optically active compounds
Patent number
4,902,818
Issue date
Feb 20, 1990
Hoffmann-La Roche Inc.
Hans-Jurgen Hansen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compounds of o-(6-hydroxy-3-oxo-3H-thio(seleno)xanthen-9-yl)benzene...
Patent number
4,582,641
Issue date
Apr 15, 1986
Hoffmann-La Roche Inc.
Hans-Jurgen Hansen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of optically active compounds
Patent number
4,578,462
Issue date
Mar 25, 1986
Hoffmann-La Roche Inc.
Hans-Jurgen Hansen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Phosphorus compounds
Patent number
4,556,740
Issue date
Dec 3, 1985
Hoffmann-La Roche Inc.
Hans-Jurgen Hansen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Photochemical preparation of previtamin D
Patent number
4,551,214
Issue date
Nov 5, 1985
Hoffmann-La Roche Inc.
Hans-Jurgen Hansen
C07 - ORGANIC CHEMISTRY