Ernst Schefczik

Person

Ludwigshafen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
[1,3,4] Triazolo [1,5-A] pyridines
- Patent number 6,043,369
- Issue date Mar 28, 2000
- BASF Aktiengesellschaft
- Ernst Schefczik
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Naphtholactam dyes
- Patent number 5,929,245
- Issue date Jul 27, 1999
- BASF Aktiengesellschaft
- Clemens Grund
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of pyridine dyes
- Patent number 5,703,238
- Issue date Dec 30, 1997
- BASF Aktiengesellschaft
- Ernst Schefczik
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
N-aminopyridone dyes
- Patent number 5,654,122
- Issue date Aug 5, 1997
- BASF Aktiengesellschaft
- Karl-Heinz Etzbach
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Sulfur compounds
- Patent number 5,637,702
- Issue date Jun 10, 1997
- BASF Aktiengesellschaft
- Manfred Patsch
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Triazolopyridine dyes
- Patent number 5,616,710
- Issue date Apr 1, 1997
- BASF Aktiengesellschaft
- Rudiger Sens
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Phenylazotriazolopyridine dyestuffs
- Patent number 5,612,465
- Issue date Mar 18, 1997
- BASF Aktiengesellschaft
- Ernst Schefczik
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo dyestuffs containing a diazo component from the aniline series...
- Patent number 5,608,041
- Issue date Mar 4, 1997
- BASF Aktiengesellschaft
- Ernst Schefczik
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
N-aminopyridone dyes
- Patent number 5,580,980
- Issue date Dec 3, 1996
- BASF Aktiengesellschaft
- Karl-Heinz Etzbach
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Acylamino-substituted isoxazole or isothiazole derivatives, their p...
- Patent number 5,538,939
- Issue date Jul 23, 1996
- BASF Aktiengesellschaft
- Peter Muenster
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Sulfur compounds useful for preparation of dyes
- Patent number 5,491,232
- Issue date Feb 13, 1996
- BASF Aktiengesellschaft
- Manfred Patsch
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of N-aminopyridones
- Patent number 5,466,812
- Issue date Nov 14, 1995
- BASF Aktiengesellschaft
- Stefan Beckmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Dyes containing thiophene radicals
- Patent number 5,352,774
- Issue date Oct 4, 1994
- Sandoz AG
- Guenter Hansen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Dyes containing thiophene radicals
- Patent number 5,283,326
- Issue date Feb 1, 1994
- Sandoz AG
- Guenter Hansen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Azo dyes with A2-aminothiophene dye azo component and a coupling co...
- Patent number 5,270,456
- Issue date Dec 14, 1993
- BASF Aktiengesellschaft
- Erwin Hahn
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
3-aminobenzene-1,2,4,5-tetracarboxylic dihydrazides and composition...
- Patent number 5,212,309
- Issue date May 18, 1993
- BASF Aktiengesellschaft
- Ernst Schefczik
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thiophene derivatives
- Patent number 5,206,375
- Issue date Apr 27, 1993
- BASF Aktiengesellschaft
- Ernst Schefczik
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Triazolopyridine dyes and thermal transfer of methine dyes
- Patent number 5,147,845
- Issue date Sep 15, 1992
- BASF Aktiengesellschaft
- Ruediger Sens
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thiopheneazo dyes with a coupling component based on M-phenylenedia...
- Patent number 5,145,952
- Issue date Sep 8, 1992
- BASF Aktiengesellschaft
- Heinz Eilingsfeld
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Thiazoleazo dyes having a diazo component from the isothiazole or t...
- Patent number 5,132,412
- Issue date Jul 21, 1992
- BASF Aktiengesellschaft
- Guenter Hansen
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
(1,2,4)triazolo[2,3-a]pyridines
- Patent number 5,101,028
- Issue date Mar 31, 1992
- BASF Aktiengesellschaft
- Ernst Schefczik
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Triazolopyridine dyes and thermal transfer of methine dyes
- Patent number 5,079,365
- Issue date Jan 7, 1992
- BASF Aktiengesellschaft
- Rudiger Sens
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Novel navy and black disperse dye mixtures including amino-phenyl t...
- Patent number 5,062,861
- Issue date Nov 5, 1991
- BASF Aktiengesellschaft
- Erwin Hahn
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Preparation of 2-cyano-3-aminoacrylonitrile derivatives
- Patent number 5,047,570
- Issue date Sep 10, 1991
- BASF Aktiengesellschaft
- Ernst Schefczik
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo dyes with a diazo component of the 3-amino thiophene series and...
- Patent number 4,994,564
- Issue date Feb 19, 1991
- BASF Aktiengesellschaft
- Karl-Heinz Etzbach
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
3-pyridylisothiazoleazo compounds useful as disperse dyes
- Patent number 4,960,873
- Issue date Oct 2, 1990
- BASF Aktiengesellschaft
- Guenter Hansen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Isothiazolylazo dyes having aminophenyl and aminonaphthyl components
- Patent number 4,960,874
- Issue date Oct 2, 1990
- BASF Aktiengesellschaft
- Udo Bergmann
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Dyes containing 3,4-disubstituted-2-diaza-thiophene radicals
- Patent number 4,952,681
- Issue date Aug 28, 1990
- Sandoz AG
- Guenter Hansen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Naphtholactam dyes and optical recording medium containing these dyes
- Patent number 4,939,012
- Issue date Jul 3, 1990
- BASF Aktiengesellschaft
- Matthias Dust
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Isothiazoleazo hydroxypyridone dyes
- Patent number 4,929,720
- Issue date May 29, 1990
- BASF Aktiengesellschaft
- Guenter Hansen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Ernst Schefczik

Person

Patents Grantslast 30 patents

[1,3,4] Triazolo [1,5-A] pyridines

Naphtholactam dyes

Preparation of pyridine dyes

N-aminopyridone dyes

Sulfur compounds

Triazolopyridine dyes

Phenylazotriazolopyridine dyestuffs

Azo dyestuffs containing a diazo component from the aniline series...

N-aminopyridone dyes

Acylamino-substituted isoxazole or isothiazole derivatives, their p...

Sulfur compounds useful for preparation of dyes

Preparation of N-aminopyridones

Dyes containing thiophene radicals

Dyes containing thiophene radicals

Azo dyes with A2-aminothiophene dye azo component and a coupling co...

3-aminobenzene-1,2,4,5-tetracarboxylic dihydrazides and composition...

Thiophene derivatives

Triazolopyridine dyes and thermal transfer of methine dyes

Thiopheneazo dyes with a coupling component based on M-phenylenedia...

Thiazoleazo dyes having a diazo component from the isothiazole or t...

(1,2,4)triazolo[2,3-a]pyridines

Triazolopyridine dyes and thermal transfer of methine dyes

Novel navy and black disperse dye mixtures including amino-phenyl t...

Preparation of 2-cyano-3-aminoacrylonitrile derivatives

Azo dyes with a diazo component of the 3-amino thiophene series and...

3-pyridylisothiazoleazo compounds useful as disperse dyes

Isothiazolylazo dyes having aminophenyl and aminonaphthyl components

Dyes containing 3,4-disubstituted-2-diaza-thiophene radicals

Naphtholactam dyes and optical recording medium containing these dyes

Isothiazoleazo hydroxypyridone dyes