Alfred Widmann

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Mutterstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Isolation of liquid urea from the off-gas of the synthesis of melamine
- Patent number 4,616,094
- Issue date Oct 7, 1986
- BASF Aktiengesellschaft
- Klaus Borho
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for cooling melamine synthesis waste gases
- Patent number 4,138,560
- Issue date Feb 6, 1979
- BASF Aktiengesellschaft
- Engelbert Hillenbrand
- C07 - ORGANIC CHEMISTRY