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Friedrich Lehr
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Efringen-Kirchen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Storage-stable dye solutions
Patent number
10,392,514
Issue date
Aug 27, 2019
ARCHROMA IP GMBH
Friedrich Lehr
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Basic bisazo compounds
Patent number
8,921,564
Issue date
Dec 30, 2014
Clariant Finance (BVI) Ltd
Ludwig Hasemann
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Concentrated aqueous compositions of dyestuffs
Patent number
7,597,721
Issue date
Oct 6, 2009
Clariant Finance (BVI) Limited
Friedrich Lehr
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Basic mono- and bisazo compounds
Patent number
7,183,409
Issue date
Feb 27, 2007
Clariant Finance (BVI) Limited
Friedrich Lehr
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Use of disazo compounds
Patent number
6,844,428
Issue date
Jan 18, 2005
Clariant Finance (BVI) Limited
Ludwig Hasemann
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Bridged disazo compounds
Patent number
6,365,719
Issue date
Apr 2, 2002
Clariant Finance (BVI) Limited
Friedrich Lehr
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Reactive monoazo dyestuffs and the processes in which they are prod...
Patent number
5,747,657
Issue date
May 5, 1998
Clariant Finance (BVI) Limited
Friedrich Lehr
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Compounds having non-linear optical properties
Patent number
5,334,710
Issue date
Aug 2, 1994
Sandoz Ltd.
Markus Ahlheim
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Copper complexes of further substituted 2,4-di-[2'-(2"-hydroxypheny...
Patent number
5,006,644
Issue date
Apr 9, 1991
Sandoz Ltd.
Friedrich Lehr
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Copper Complexes of disazo compounds having two substituted 2-hydro...
Patent number
4,820,808
Issue date
Apr 11, 1989
Sandoz Ltd.
Kurt Brenneisen
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Tetrakisazo compounds having two 1-hydroxy-3- or 4-sulfo-6- or 7-am...
Patent number
4,670,547
Issue date
Jun 2, 1987
Sandoz Ltd.
Friedrich Lehr
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
STORAGE-STABLE DYE SOLUTIONS
Publication number
20170022366
Publication date
Jan 26, 2017
Friedrich LEHR
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Anthraquinone Dyes As Photosensitizers In Photovoltaic Cells
Publication number
20100267957
Publication date
Oct 21, 2010
CLARIANT FINANCE (BVI) LIMITED
Friedrich Lehr
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Basic Bisazo Compounds
Publication number
20100000033
Publication date
Jan 7, 2010
CLARIANT FINANCE (BVI) LIMITED
Ludwig Hasemann
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Concentrated aqueous compositions of dyestuffs
Publication number
20070101515
Publication date
May 10, 2007
Friedrich Lehr
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Basic mono-and bisazo compounds
Publication number
20040158049
Publication date
Aug 12, 2004
Friedrich Lehr
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Use of disazo compounds
Publication number
20040111813
Publication date
Jun 17, 2004
Ludwig Hasemann
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Use of organic substances
Publication number
20030182733
Publication date
Oct 2, 2003
Jurgen Geiwiz
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE