Waldemar Weber

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Frankfurt am Main, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing sulfuric acid
- Patent number 4,029,751
- Issue date Jun 14, 1977
- Metallgesellschaft Aktiengesellschaft
- Karl-Heinz Dorr
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Catalytic reactor having annular catalyst tray means
- Patent number 3,963,423
- Issue date Jun 15, 1976
- Metallgesellschaft Aktiengesellschaft
- Karl Heinz Dorr
- C01 - INORGANIC CHEMISTRY