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  • CPC
  • C21B7/02
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Parent Industries

CCHEMISTRY METALLURGY C21Iron metallurgy C21BMANUFACTURE OF IRON OR STEEL C21B7/00Blast furnaces

Current Industry

C21B7/02Internal forms
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Charging system, in particular for a shaft smelt reduction furnace
    • Patent number 11,542,565
    • Issue date Jan 3, 2023
    • Paul Wurth S.A.
    • Patrick Hutmacher
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Apparatus and method for frame and brick constructions
    • Patent number 9,102,990
    • Issue date Aug 11, 2015
    • Berry Metal Company
    • Todd G. Smith
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Metallurgical furnace
    • Patent number 4,009,871
    • Issue date Mar 1, 1977
    • Richard F. Obenchain
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Metallurgical shaft furnace
    • Patent number 4,009,870
    • Issue date Mar 1, 1977
    • Richard F. Obenchain
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3405925
    • Patent number 3,405,925
    • Issue date Oct 15, 1968
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3253906
    • Patent number 3,253,906
    • Issue date May 31, 1966
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3203784
    • Patent number 3,203,784
    • Issue date Aug 31, 1965
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3203684
    • Patent number 3,203,684
    • Issue date Aug 31, 1965
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3203685
    • Patent number 3,203,685
    • Issue date Aug 31, 1965
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3096296
    • Patent number 3,096,296
    • Issue date Jul 2, 1963
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    2596738
    • Patent number 2,596,738
    • Issue date May 13, 1952
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    2375510
    • Patent number 2,375,510
    • Issue date May 8, 1945
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    2373514
    • Patent number 2,373,514
    • Issue date Apr 10, 1945
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    2052928
    • Patent number 2,052,928
    • Issue date Sep 1, 1936
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    1783416
    • Patent number 1,783,416
    • Issue date Dec 2, 1930
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    1724490
    • Patent number 1,724,490
    • Issue date Aug 13, 1929
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    1703518
    • Patent number 1,703,518
    • Issue date Feb 26, 1929
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    1642359
    • Patent number 1,642,359
    • Issue date Sep 13, 1927
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    1478439
    • Patent number 1,478,439
    • Issue date Dec 25, 1923
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    1435857
    • Patent number 1,435,857
    • Issue date Nov 14, 1922
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    1334310
    • Patent number 1,334,310
    • Issue date Mar 23, 1920
    • C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents