Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method of, and arrangement for, producing molten pig iron or steel pre-material

Method of, and arrangement for, producing molten pig iron or steel pre-material

US Patent 4396421 · Granted Aug 2, 1983

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Process for utilizing of zinc-containing metallurgical dusts and sludges1990
Process for gaining electric energy in addition to producing molten pig iron and1989
Process for the disposal of settled sludge derived from a biological sewage-disp1987
Method for processing a heavy-metal-containing residue from the chemical industr1987
Process for the production of calcium carbide and a shaft furnace for carrying o1987
Arrangement for producing metals, such as molten pig iron, steel pre-material an1986
Plant for producing calcium carbide1986
Plasma melting furnace arrangement1985
Method for producing metals, such as molten pig iron, steel pre-material and fer1985
Method of, and arrangement for, reducing oxide-containing fine-particle ores1985
Method of carrying out metallurgical or chemical processes in a shaft furnace, a1985
Method for carrying out melting, melt-metallurgical and/or reduction-metallurgic1985