Eckhard Hetzel

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Frankenthal, DE

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Patents Grantslast 30 patents

Information Patent Grant
Purification of frozen crystal layers
- Patent number 4,795,571
- Issue date Jan 3, 1989
- BASF Aktiengesellschaft
- Bernhard Holzknecht
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of acicular ferromagnetic metal particles consisting es...
- Patent number 4,378,240
- Issue date Mar 29, 1983
- BASF Aktiengesellschaft
- Hansjoerg Siegle
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Continuous preparation of isatoic anhydride
- Patent number 4,328,339
- Issue date May 4, 1982
- BASF Aktiengesellschaft
- Gerhard Kilpper
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Separating toluene diisocyanate and/or higher boiling solvents from...
- Patent number 4,289,589
- Issue date Sep 15, 1981
- BASF Aktiengesellschaft
- Waldemar Koehler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Manufacture of aqueous methanolic solution of sodium formate
- Patent number 4,237,318
- Issue date Dec 2, 1980
- BASF Aktiengesellschaft
- Werner Ostertag
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Manufacture of butenediol diacetate
- Patent number 4,122,285
- Issue date Oct 24, 1978
- BASF Aktiengesellschaft
- Hans-Martin Weitz
- C07 - ORGANIC CHEMISTRY