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Helmut Freitag
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Weinheim, DE
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last 30 patents
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Patent Grant
Reagent and assay methods including a phenazine-containing indicator
Patent number
5,707,820
Issue date
Jan 13, 1998
Boehringer Mannheim Corporation
Christopher D. Wilsey
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Diphenylmethane derivatives, process for their production and their...
Patent number
5,460,975
Issue date
Oct 24, 1995
Boehringer Mannheim GmbH
Helmut Freitag
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Devices for determining hydrolase activity through its hydrolytic r...
Patent number
5,434,054
Issue date
Jul 18, 1995
Boehringer Mannheim GmbH
Klaus Pollmann
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Test strip
Patent number
5,271,895
Issue date
Dec 21, 1993
Boehringer Mannheim Corporation
Ralph P. McCroskey
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for determination of an analyte and reagent therefor
Patent number
5,037,764
Issue date
Aug 6, 1991
Boehringer Mannheim GmbH
Hans-Erich Wilk
G01 - MEASURING TESTING
Information
Patent Grant
Multilayer test strip device with a dissolvable reagent layer
Patent number
4,876,067
Issue date
Oct 24, 1989
Boehringer Mannheim GmbH
Ulfert Deneke
G01 - MEASURING TESTING
Information
Patent Grant
Method for separating plasma from blood and silanized glass fibres...
Patent number
4,786,603
Issue date
Nov 22, 1988
Boehringer Mannheim GmbH
Hans Wielinger
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE