Egon Joerchel

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Hochheim am Main, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing concentrated tetrafluoroboric acid
- Patent number 4,061,723
- Issue date Dec 6, 1977
- Hoechst Aktiengesellschaft
- Manfred Feser
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Production of phosphorus nitrides
- Patent number 4,044,104
- Issue date Aug 23, 1977
- Hoechst Aktiengesellschaft
- Joseph Cremer
- C01 - INORGANIC CHEMISTRY