Maria Belak

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Budapest, HU

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing arylsulphonyl-isocyanates and addition deriva...
- Patent number 5,068,424
- Issue date Nov 26, 1991
- Nitrokemia Ipartelepek
- Gabor Besenyei
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing N-sulphonyl-ureas
- Patent number 4,954,628
- Issue date Sep 4, 1990
- Nitrokaelepek
- Gabor Besenyei
- C07 - ORGANIC CHEMISTRY