Willi Portz

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Erftstadt-Kierdorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for making agents for desulfurizing crude iron or steel melts
- Patent number 4,400,292
- Issue date Aug 23, 1983
- Hoechst Aktiengesellschaft
- Albert Braun
- C21 - METALLURGY OF IRON
Information Patent Grant
Desulfurization mixture and process for making it
- Patent number 4,395,282
- Issue date Jul 26, 1983
- Hoechst Aktiengesellschaft
- Albert Braun
- C21 - METALLURGY OF IRON
Information Patent Grant
Production of calcium carbide
- Patent number 4,391,786
- Issue date Jul 5, 1983
- Hoechst Aktiengesellschaft
- Hans-Joachim Kersting
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the manufacture of desulfurizing agents for crude iron...
- Patent number 4,368,071
- Issue date Jan 11, 1983
- Hoechst Aktiengesellschaft
- Albert Braun
- C21 - METALLURGY OF IRON
Information Patent Grant
Desulfurizing agent and process for its manufacture
- Patent number 4,358,312
- Issue date Nov 9, 1982
- Hoechst Aktiengesellschaft
- Albert Braun
- C21 - METALLURGY OF IRON
Information Patent Grant
Agent for desulfurizing crude iron and steel melts, and process for...
- Patent number 4,323,392
- Issue date Apr 6, 1982
- Albert Braun
- C21 - METALLURGY OF IRON
Information Patent Grant
Production of agent for desulfurizing crude iron and steel melts
- Patent number 4,318,822
- Issue date Mar 9, 1982
- Hoechst Aktiengesellschaft
- Albert Braun
- C21 - METALLURGY OF IRON