Dietmar Kalz

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Neunkirchen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of quinophthalones
- Patent number 6,121,452
- Issue date Sep 19, 2000
- Bayer Aktiengesellschaft
- Dietmar Kalz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Bridged perinones/quinophthalones
- Patent number 5,955,614
- Issue date Sep 21, 1999
- Bayer Aktiengesellschaft
- Dietmar Kalz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Bridged anthraquinones
- Patent number 5,912,386
- Issue date Jun 15, 1999
- Bayer Aktiengesellschaft
- Dietmar Kalz
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of polycyclic compounds
- Patent number 5,830,931
- Issue date Nov 3, 1998
- Bayer Aktiengesellschaft
- Thomas Pelster
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of N,N'-disubstituted 1,4-diaminoanthra...
- Patent number 5,639,896
- Issue date Jun 17, 1997
- Bayer Aktiengesellschaft
- Dietmar Kalz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing cationic hydrazone dyestuffs
- Patent number 4,760,132
- Issue date Jul 26, 1988
- Bayer Aktiengesellschaft
- Hans-Lothar Dorsch
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...