Klaus Leverenz

Person

Leverkusen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Cationic 1,3,4-thiadiazole dyestuffs
- Patent number 5,208,325
- Issue date May 4, 1993
- Bayer Aktiengesellschaft
- Horst Berneth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Disperse azo dyestuffs containing a thiocyonate group
- Patent number 5,102,994
- Issue date Apr 7, 1992
- Bayer Aktiengesellschaft
- Klaus Leverenz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Nonionic azo compounds in which the coupling component is a 3,4-dia...
- Patent number 4,835,261
- Issue date May 30, 1989
- Bayer Aktiengesellschaft
- Klaus Leverenz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the preparation of azo dyestuffs having an aniline-type...
- Patent number 4,810,783
- Issue date Mar 7, 1989
- Bayer Aktiengesellschaft
- Klaus Leverenz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Benzisothiazole azo dye for synthetic fibers
- Patent number 4,773,915
- Issue date Sep 27, 1988
- Bayer Aktiengesellschaft
- Winfried Kruckenberg
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Stable gamma-modification of a benzisothiazole azo dyestuff
- Patent number 4,722,737
- Issue date Feb 2, 1988
- Bayer Aktiengesellschaft
- Horst Brandt
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Benzoisothiazole azo dyestuffs
- Patent number 4,681,932
- Issue date Jul 21, 1987
- Bayer Aktiengesellschaft
- Winfried Kruckenberg
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Halo-substituted amino-and substituted-sulphonamido-containing azo...
- Patent number 4,424,156
- Issue date Jan 3, 1984
- Bayer Aktiengesellschaft
- Rainer Hamprecht
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Hydroxypyridone azo dyestuffs
- Patent number 4,329,283
- Issue date May 11, 1982
- Bayer Aktiengesellschaft
- Henning Reel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for diazotizing aromatic amines
- Patent number 4,250,089
- Issue date Feb 10, 1981
- Bayer Aktiengesellschaft
- Klaus Leverenz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Monoazo dyestuff containing di-cyano substituents ortho to the azo...
- Patent number 4,237,048
- Issue date Dec 2, 1980
- Bayer Aktiengesellschaft
- Alois Gottschlich
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Phenyl-azo-anilino dyestuff
- Patent number 4,105,655
- Issue date Aug 8, 1978
- Bayer Aktiengesellschaft
- Alois Gottschlich
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Klaus Leverenz

Person

Patents Grantslast 30 patents

Cationic 1,3,4-thiadiazole dyestuffs

Disperse azo dyestuffs containing a thiocyonate group

Nonionic azo compounds in which the coupling component is a 3,4-dia...

Process for the preparation of azo dyestuffs having an aniline-type...

Benzisothiazole azo dye for synthetic fibers

Stable gamma-modification of a benzisothiazole azo dyestuff

Benzoisothiazole azo dyestuffs

Halo-substituted amino-and substituted-sulphonamido-containing azo...

Hydroxypyridone azo dyestuffs

Process for diazotizing aromatic amines

Monoazo dyestuff containing di-cyano substituents ortho to the azo...

Phenyl-azo-anilino dyestuff