Karl-Heinrich Lange

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Leverkusen, DE

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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 1,3,4-thiadiazole dyestuffs
- Patent number 5,436,323
- Issue date Jul 25, 1995
- Bayer Aktiengesellschaft
- Horst Berneth
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Cationic triazatrimethine dyestuffs
- Patent number 5,328,993
- Issue date Jul 12, 1994
- Bayer Aktiengesellschaft
- Hauke Furstenwerth
- C07 - ORGANIC CHEMISTRY