Ernst Friedel

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Darmstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing high-purity sulphuric acid
- Patent number 6,740,302
- Issue date May 25, 2004
- Merck Patent GmbH
- Martin Hostalek
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Method for producing high-purity sulphuric acid
- Publication number 20020192144
- Publication date Dec 19, 2002
- Martin Hostalek
- C01 - INORGANIC CHEMISTRY