Alfred Brack

Person

Odenthal, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of dyestuffs
- Patent number 5,578,711
- Issue date Nov 26, 1996
- Bayer Aktiengesellschaft
- Roderich Raue
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of dyestuffs
- Patent number 5,541,299
- Issue date Jul 30, 1996
- Bayer Aktiengesellschaft
- Roderich Raue
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of dyestuffs
- Patent number 5,502,171
- Issue date Mar 26, 1996
- Bayer Aktiengesellschaft
- Roderich Raue
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cationic triazatrimethine dyestuffs
- Patent number 5,328,993
- Issue date Jul 12, 1994
- Bayer Aktiengesellschaft
- Hauke Furstenwerth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Chromogenic 4,4-diaryldihydroquinazolones
- Patent number 4,968,797
- Issue date Nov 6, 1990
- Bayer Aktiengesellschaft
- Horst Berneth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cationic diazacyanine dyestuffs for dyeing polyacrylonitrile-wool b...
- Patent number 4,840,641
- Issue date Jun 20, 1989
- Bayer Aktiengesellschaft
- Alfred Brack
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Chromogenic 4,4-diaryldihydroquinazolones
- Patent number 4,754,034
- Issue date Jun 28, 1988
- Bayer Aktiengesellschaft
- Horst Berneth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Chromogenic 4,4-diaryl-dihydroquinazolones, their preparation and t...
- Patent number 4,695,633
- Issue date Sep 22, 1987
- Bayer Aktiengesellschaft
- Horst Berneth
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Cationic naphtholactam dyestuffs
- Patent number 4,446,326
- Issue date May 1, 1984
- Bayer Aktiengesellschaft
- Alfred Brack
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the preparation of anionic quinophthalone dyestuffs
- Patent number 4,396,768
- Issue date Aug 2, 1983
- Bayer Aktiengesellschaft
- Alfred Brack
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the preparation of pyridine-4-aldehyde phenylhydrazones
- Patent number 4,310,664
- Issue date Jan 12, 1982
- Bayer Aktiengesellschaft
- Heinz Giesecke
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of cationic naphtholactam dyestuffs
- Patent number 4,283,540
- Issue date Aug 11, 1981
- Bayer Aktiengesellschaft
- Alfred Brack
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Benz-[c,d]-indolyl compounds
- Patent number 4,234,488
- Issue date Nov 18, 1980
- Bayer Aktiengesellschaft
- Horst Harnisch
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Cationic dyestuffs
- Patent number 4,220,780
- Issue date Sep 2, 1980
- Bayer Aktiengesellschaft
- Alfred Brack
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Transfer printing process with naphtholactam dyes
- Patent number 4,203,722
- Issue date May 20, 1980
- Bayer Aktiengesellschaft
- Alfred Brack
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Benz-(C,D)-indolyl compounds
- Patent number 4,147,865
- Issue date Apr 3, 1979
- Bayer Aktiengesellschaft
- Horst Harnisch
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...

Alfred Brack

Person

Patents Grantslast 30 patents

Process for the preparation of dyestuffs

Process for the preparation of dyestuffs

Process for the preparation of dyestuffs

Cationic triazatrimethine dyestuffs

Chromogenic 4,4-diaryldihydroquinazolones

Cationic diazacyanine dyestuffs for dyeing polyacrylonitrile-wool b...

Chromogenic 4,4-diaryldihydroquinazolones

Chromogenic 4,4-diaryl-dihydroquinazolones, their preparation and t...

Cationic naphtholactam dyestuffs

Process for the preparation of anionic quinophthalone dyestuffs

Process for the preparation of pyridine-4-aldehyde phenylhydrazones

Process for the preparation of cationic naphtholactam dyestuffs

Benz-[c,d]-indolyl compounds

Cationic dyestuffs

Transfer printing process with naphtholactam dyes

Benz-(C,D)-indolyl compounds