Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › 2-stage fluidized bed furnace for pre-reducing fine iron ore and method for pre-reducing fine iron ore using the furnace

2-stage fluidized bed furnace for pre-reducing fine iron ore and method for pre-reducing fine iron ore using the furnace

US Patent 5919281 · Granted Jul 6, 1999

Estimated economic value: $50,431,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Container with holder2025
Distribution network management system using distributed control2025
Process for preparing aminopyrimidine derivatives2025
Process for preparing aminopyrimidine derivatives2023
Arc detection method and apparatus using statistical value of electric current2022
Process for preparing aminopyrimidine derivatives2022
Arc detection method and apparatus using statistical value of electric current2021
Charge/discharge control apparatus and method of energy storage system, and ener2021
Process for preparing aminopyrimidine derivatives2021
Power conversion system considering efficiency characteristic and method of cont2018
Arc detection apparatus, arc detecting method, and power system2017
Method of stabilizing hydrogenated amorphous silicon and amorphous hydrogenated 2017