Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for producing steel having a low content of nitrogen in a ladle furnace

Process for producing steel having a low content of nitrogen in a ladle furnace

US Patent 4990183 · Granted Feb 5, 1991

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Process for the recovery of metallic scrap1994
Replacement of argon with carbon dioxide in a reactor containing molten metal fo1993
Temperature maintenance and metallurgical treatment furnace1992
Foundry plant with rotary furnaces and process of operation1992
Lance for discharging liquid nitrogen or liquid argon into a furnace throughout 1989
Method to protect the surface of metal in vertical melting furnaces1989
Process for protecting against oxidation and/or nitridation of a liquid metal st1989
Process for the production of a bath of molten metal or alloys1989
Process for the production of a bath of molten metal or alloys1989
Process of casting steel including rendering the steel bath inert by means of li1988
Method and apparatus for shielding a stream of liquid metal1988
Process for purifying metals by insufflation and product produced thereby1986