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Willi Wintermeyer
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Seeheim-Jugenheim, DE
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last 30 patents
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Patent Grant
Chromatography column and process for packing same
Patent number
4,732,687
Issue date
Mar 22, 1988
Merck Patent Gesellschaft mit beschrankter Haftung
Peter Muller
G01 - MEASURING TESTING
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Patent Grant
Optically active 1-(4-methoxybenzyl)-1,2,3,4,5,6,7,8-octahydroisoqu...
Patent number
4,727,147
Issue date
Feb 23, 1988
Merck Patent Gesellschaft mit beschrankter Haftung
Willi Wintermeyer
C07 - ORGANIC CHEMISTRY
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Patent Grant
Process for separating and recovering metal catalysts
Patent number
4,414,401
Issue date
Nov 8, 1983
Merck Patent Gesellschaft mit beschrankter Haftung
Willi Wintermeyer
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Patent Grant
Preparation of diacetoneketogulonic acid by oxidation of diacetones...
Patent number
4,387,245
Issue date
Jun 7, 1983
Merck Patent Gesellschaft mit beschrankter Haftung
Rolf Wittmann
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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Patent Grant
Preparation of diacetone-ketogulonic acid
Patent number
4,375,393
Issue date
Mar 1, 1983
Merck Patent Gesellschaft mit beschrankter Haftung
Fritz Reiff
C07 - ORGANIC CHEMISTRY