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Patents Grants
last 30 patents
Information
Patent Grant
Use of indolenine-cyaninedisulphonic acid derivatives
Patent number
6,261,753
Issue date
Jul 17, 2001
Riedel-De Haen Aktiengesellschaft
Ralph Lonsky
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Use of indoleine-cyaninedisulphonic acid derivatives
Patent number
5,747,233
Issue date
May 5, 1998
Riedel-de Haen Aktiengesellschaft
Ralph Lonsky
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process for the preparation of haloanthranilic acids
Patent number
5,744,638
Issue date
Apr 28, 1998
Riedel-de Haen Aktiengesellschaft
Horst Schmand
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for determining androstenone contents in adipose tissues
Patent number
5,597,701
Issue date
Jan 28, 1997
Riedel-De Haen Aktiengesellschaft
Rolf P. Claus
G01 - MEASURING TESTING
Information
Patent Grant
Karl Fischer reagent
Patent number
5,567,618
Issue date
Oct 22, 1996
Riedel-De Haen Aktiengesellschaft
Eugen Scholz
G01 - MEASURING TESTING
Information
Patent Grant
Storage-stable aqueous solutions of isothiazolin-3-ones
Patent number
5,480,898
Issue date
Jan 2, 1996
Riedel-de Haen Aktiengesellschaft
Wolfgang Lindner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Use of N-methylformamide as solvent for the Karl Fischer titration
Patent number
5,466,606
Issue date
Nov 14, 1995
Riedel-de Haen Aktiengesellschaft
Eugen Scholz
G01 - MEASURING TESTING
Information
Patent Grant
Process for the preparation of substantially fluorinated alkyl brom...
Patent number
5,430,202
Issue date
Jul 4, 1995
Riedel-de Haen Aktiengesellschaft
Andreas Winterfeldt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method and reagent for the determination of water
Patent number
5,401,662
Issue date
Mar 28, 1995
Riedel-de Haen Aktiengesellschaft
Hermann Matschiner
G01 - MEASURING TESTING
Information
Patent Grant
3,6-bis-(2'-methoxyphenyl)-2,5-dihydro-2,5-dimethyl-pyrrolo-(3,4-c)...
Patent number
5,354,869
Issue date
Oct 11, 1994
Riedel-de Haen Aktiengesellschaft
Heinz Langhals
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of substantially fluorinated alkyl brom...
Patent number
5,336,818
Issue date
Aug 9, 1994
Riedel-de Haen Aktiengesellschaft
Andreas Winterfeldt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catholyte for the Karl Fischer coulometric water determination
Patent number
5,292,413
Issue date
Mar 8, 1994
Riedel-de Haen Aktiengesellschaft
Eugen Scholz
G01 - MEASURING TESTING
Information
Patent Grant
Bipyridyls and their use as inks
Patent number
5,266,700
Issue date
Nov 30, 1993
Riedel-De-Haen
Heinz Langhals
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Liquid preservatives
Patent number
5,160,666
Issue date
Nov 3, 1992
Riedel-de Haen Ag.
Wolfgang Lindner
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Reagent, cell and method for the coulometric determination of water
Patent number
5,139,955
Issue date
Aug 18, 1992
Riedel-de Haen Ag.
Eugen Scholz
G01 - MEASURING TESTING
Information
Patent Grant
Use of a microbicidal agent for the treatment of concrete roof tiles
Patent number
5,125,953
Issue date
Jun 30, 1992
Riedel-de Haen Aktiengesellschaft
Hans Gattner
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
UV light stabilizer based on benzophenone
Patent number
4,824,892
Issue date
Apr 25, 1989
Riedel-de Haen Aktiengesellschaft
Kurt Eiglmeier
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyridine-free Karl-Fischer reagent and a process for the determinat...
Patent number
4,748,126
Issue date
May 31, 1988
Riedel-de Haen Ag.
Wolfgang Fischer
G01 - MEASURING TESTING
Information
Patent Grant
Karl Fischer titration agent and method
Patent number
4,740,471
Issue date
Apr 26, 1988
Riedel-De Haen Aktiengesellschaft
Eugen Scholz
G01 - MEASURING TESTING
Information
Patent Grant
Substituted bromofluorobenzene derivatives and process for its manu...
Patent number
4,446,075
Issue date
May 1, 1984
Riedel-de Haen Ag.
Kurt Eiglmeier
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Aliphatic amine-containing Karl Fischer titration agent and method...
Patent number
4,429,048
Issue date
Jan 31, 1984
Riedel-de Haen Ag.
Eugen Scholz
G01 - MEASURING TESTING
Information
Patent Grant
Process for the preparation of a 2-alkylphenol
Patent number
4,419,529
Issue date
Dec 6, 1983
Riedel-de Haen Aktiengesellschaft
Arthur Steinmetz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for disinfecting and preserving hides and skins
Patent number
4,379,709
Issue date
Apr 12, 1983
Riedel-de Haen Aktiengesellschaft
Franz Margold
C14 - SKINS HIDES PELTS LEATHER
Information
Patent Grant
Titration agent and method for using same
Patent number
4,378,972
Issue date
Apr 5, 1983
Riedel-de Haen Aktiengesellschaft
Eugen Scholz
G01 - MEASURING TESTING
Information
Patent Grant
Chlorofluoroferrate(II,III), a process for its manufacture, its use...
Patent number
4,370,148
Issue date
Jan 25, 1983
Riedel-De Haen Aktiengesellschaft
Rudolf Hirschberg
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the manufacture of hydroxylammonium perchlorate
Patent number
4,335,091
Issue date
Jun 15, 1982
Riedel-de Haen Aktiengesellschaft
Eugen Scholz
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Screw cap for bottle-type containers
Patent number
4,326,639
Issue date
Apr 27, 1982
Georg Menshen & Co. KG
Otto Stahl
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
2,2-Bis[4-(2,3-dibromopropoxy)-3,5-dibromophenyl]-propane process
Patent number
4,302,614
Issue date
Nov 24, 1981
Riedel-de Haen Aktiengesellschaft
Wolfgang Dannenberg
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of a red emitting phosphor coated with...
Patent number
4,297,390
Issue date
Oct 27, 1981
Riedel-de Haen Aktiengesellschaft
Karl Franz
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for resolution of racemic DL-.alpha.-aminocarboxylic acids
Patent number
4,285,884
Issue date
Aug 25, 1981
Riedel-de Haen Aktiengesellschaft
Wolfgang Dannenberg
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74360543 - MERGAL
Serial number
74360543
Registration number
2147941
Filing date
Feb 18, 1993
RIEDEL-DE HAEN AKTIENGESELLSCHAFT
2 - Paints, varnishes, lacquers
Information
Trademark
74283217 - CHROMASOLV
Serial number
74283217
Registration number
1870255
Filing date
Jun 9, 1992
Riedel-de Haen Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
74106503 - VETRANAL
Serial number
74106503
Registration number
1766481
Filing date
Oct 12, 1990
Riedel-de Haen Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
74027294 - CHROMAPREP
Serial number
74027294
Filing date
Feb 7, 1990
Riedel-de Haen Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73584616 - MERGAL
Serial number
73584616
Registration number
1410039
Filing date
Feb 19, 1986
RIEDEL-DE HAEN AG
2 - Paints, varnishes, lacquers
Information
Trademark
73583970 - LUMIPUR
Serial number
73583970
Registration number
1413863
Filing date
Feb 18, 1986
RIEDEL-DE HAEN AG
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73460575 - RIEDEL DE HAEN
Serial number
73460575
Registration number
1330356
Filing date
Jan 12, 1984
Riedel-De Haen Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73350379 - CHROMASOLV
Serial number
73350379
Filing date
Feb 16, 1982
RIEDEL-DE HAEN AKTIENGESELLSCHAFT
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73350382 - PROSYNTH
Serial number
73350382
Registration number
1256469
Filing date
Feb 16, 1982
Riedel-De Haen Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73350159 - PURANAL
Serial number
73350159
Registration number
1262759
Filing date
Feb 16, 1982
Riedel-De Haen Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73350160 - SPECTRANAL
Serial number
73350160
Filing date
Feb 16, 1982
RIEDEL-DE HAEN AKTIENGESELLSCHAFT
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73350380 - HYDRANAL
Serial number
73350380
Registration number
1258060
Filing date
Feb 16, 1982
Riedel-De Haen Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73350381 - LUMILUX
Serial number
73350381
Registration number
1258061
Filing date
Feb 16, 1982
Riedel-De Haen Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73320623 - PESTANAL
Serial number
73320623
Registration number
1239043
Filing date
Jul 27, 1981
Hoechst Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73040393 - RIEDEL-DE HAENAG SEELZE-HANNOVER
Serial number
73040393
Registration number
1032659
Filing date
Dec 26, 1974
RIEDEL-DE HAEN AKTIENGESELLSCHAFT
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72199110 - PANPEHA
Serial number
72199110
Registration number
787531
Filing date
Aug 3, 1964
RIEDEL-DE HAEN AKTIENGESELLSCHAFT
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72165839 - FIXANAL
Serial number
72165839
Registration number
766961
Filing date
Apr 1, 1963
Riedel-De Haen Aktiengesellschaft
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72132374 - KOLLAG
Serial number
72132374
Registration number
740205
Filing date
Nov 20, 1961
Riedel-De Haen Aktiengesellschaft
4 - Industrial oils and greases
Information
Trademark
72132375 - HYDROKOLLAG
Serial number
72132375
Registration number
740206
Filing date
Nov 20, 1961
Riedel-De Haen Aktiengesellschaft
4 - Industrial oils and greases