Hans-Peter Kuhlthau

Person

Leverkusen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Cationic dyestuffs, a process for their preparation, and their use...
- Patent number 4,598,151
- Issue date Jul 1, 1986
- Bayer Aktiengesellschaft
- Hans-Peter Kuhlthau
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of cationic methine dyestuffs
- Patent number 4,542,223
- Issue date Sep 17, 1985
- Bayer Aktiengesellschaft
- Roderich Raue
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for preparing cationic methine dyestuffs
- Patent number 4,542,224
- Issue date Sep 17, 1985
- Bayer Aktiengesellschaft
- Roderich Raue
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Preparation of cationic methine dyestuffs
- Patent number 4,513,142
- Issue date Apr 23, 1985
- Bayer Aktiengesellschaft
- Roderich Raue
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the preparation of solutions of cationic polyazo dyestuffs
- Patent number 4,400,321
- Issue date Aug 23, 1983
- Bayer Aktiengesellschaft
- Karl Linhart
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
One pot diazotization, coupling and quaternization of aminotriazoles
- Patent number 4,392,998
- Issue date Jul 12, 1983
- Bayer Aktiengesellschaft
- Hans-Peter Kuhlthau
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Process for the preparation of cationic alkylarylhydrazone dyestuff...
- Patent number 4,376,728
- Issue date Mar 15, 1983
- Bayer Aktiengesellschaft
- Roderich Raue
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Cationic dyestuffs
- Patent number 4,294,756
- Issue date Oct 13, 1981
- Bayer Aktiengesellschaft
- Hans-Peter Kuhlthau
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Alkylation of benzthiazole-azo-phenylamine dyestuffs
- Patent number 4,292,238
- Issue date Sep 29, 1981
- Bayer Aktiengesellschaft
- Hans-Peter Kuhlthau
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Benzthiazolyl-azo-indole basic dyestuffs
- Patent number 4,252,716
- Issue date Feb 24, 1981
- Bayer Aktiengesellschaft
- Hans-Peter Kuhlthau
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Pressure-sensitive recording material
- Patent number 4,211,436
- Issue date Jul 8, 1980
- Bayer Aktiengesellschaft
- Hans-Peter Kuhlthau
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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
Cationic dyestuffs
- Patent number 4,185,151
- Issue date Jan 22, 1980
- Bayer Aktiengesellschaft
- Hans-Peter Kuhlthau
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Triaryl-methane dyestuffs
- Patent number 4,115,413
- Issue date Sep 19, 1978
- Bayer Aktiengesellschaft
- Roderich Raue
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Hans-Peter Kuhlthau

Person

Patents Grantslast 30 patents

Cationic dyestuffs, a process for their preparation, and their use...

Process for the preparation of cationic methine dyestuffs

Process for preparing cationic methine dyestuffs

Preparation of cationic methine dyestuffs

Process for the preparation of solutions of cationic polyazo dyestuffs

One pot diazotization, coupling and quaternization of aminotriazoles

Process for the preparation of cationic alkylarylhydrazone dyestuff...

Cationic dyestuffs

Alkylation of benzthiazole-azo-phenylamine dyestuffs

Benzthiazolyl-azo-indole basic dyestuffs

Pressure-sensitive recording material

Transfer printing process with naphtholactam dyes

Cationic dyestuffs

Triaryl-methane dyestuffs