Fred Esser

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DDR-7010 Leipzig, DD

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Patents Grantslast 30 patents

Information Patent Grant
Metallurgical plasma melting process
- Patent number 4,626,654
- Issue date Dec 2, 1986
- VEB Edelstahlwerk "8 Mai 1945" Freital
- Fred Esser
- C21 - METALLURGY OF IRON
Information Patent Grant
Contact electrode for melting and heating furnaces with DC plasma h...
- Patent number 4,434,494
- Issue date Feb 28, 1984
- Herbert Pietzsch
- C21 - METALLURGY OF IRON
Information Patent Grant
Metallurgical plasma melting furnace
- Patent number 4,418,414
- Issue date Nov 29, 1983
- VEB Edelstahlwerk Freital im VEB Rohrkombinat
- Fred Esser
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Contact electrode for melting and heating furnaces with DC plasma h...
- Patent number 4,390,773
- Issue date Jun 28, 1983
- Fred Esser
- C21 - METALLURGY OF IRON