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Lead

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  • CPC
  • C21C2007/0012
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Parent Industries

CCHEMISTRY METALLURGY C21Iron metallurgy C21CPROCESSING OF PIG-IRON

Current Industry

C21C2007/0012Lead
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Rail
    • Patent number 10,995,396
    • Issue date May 4, 2021
    • Nippon Steel Corporation
    • Masaharu Ueda
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Lead-containing additive for steel melts
    • Patent number 4,892,580
    • Issue date Jan 9, 1990
    • SKW Trostberg Aktiengesellschaft
    • Bernd Neuer
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Tundish for mixing alloying elements with molten metal
    • Patent number 4,711,429
    • Issue date Dec 8, 1987
    • USX Corporation
    • David J. Diederich
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Method of manufacturing a lead alloy steel and a steel made accordi...
    • Patent number 4,203,763
    • Issue date May 20, 1980
    • Scandinavian Lancers Aktiebolag
    • M. K. Olof Johnsson
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Leaded steel bar free of lead macroinclusions
    • Patent number 4,056,387
    • Issue date Nov 1, 1977
    • Inland Steel Company
    • Gregorio Asua Cantera
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3876422
    • Patent number 3,876,422
    • Issue date Apr 8, 1975
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3869283
    • Patent number 3,869,283
    • Issue date Mar 4, 1975
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    3728109
    • Patent number 3,728,109
    • Issue date Apr 17, 1973
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    2138729
    • Patent number 2,138,729
    • Issue date Nov 29, 1938
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    2104444
    • Patent number 2,104,444
    • Issue date Jan 4, 1938
    • C21 - METALLURGY OF IRON