Herbert Ressel

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Erftstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for making crude phosphoric acid
- Patent number 4,780,294
- Issue date Oct 25, 1988
- Hoechst Aktiengesellschaft
- Gunther Schimmel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Apparatus for reducing iron and vanadium in phosphoric acid solution
- Patent number 4,705,671
- Issue date Nov 10, 1987
- Hoechst Aktiengesellschaft
- Herbert Ressel
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for making wet-process phosphoric acid
- Patent number 4,683,127
- Issue date Jul 28, 1987
- Hoechst Aktiengesellschaft
- Friedrich Kolkmann
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for reducing iron and vanadium in phosphoric acid solution
- Patent number 4,642,224
- Issue date Feb 10, 1987
- Hoechst Aktiengesellschaft
- Herbert Ressel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for defluorinating alkali metal phosphate solutions
- Patent number 4,620,966
- Issue date Nov 4, 1986
- Hoechst Aktiengesellschaft
- Gunther Schimmel
- C01 - INORGANIC CHEMISTRY