containing chromium oxide or chrome ore

Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making high density, fusion cast basic metallurgical refr...

    • Patent number 4,657,878
    • Issue date Apr 14, 1987
    • Corhart Refractories
    • Thomas A. Clishem
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Spinel type fused refractory product

    • Patent number 4,348,485
    • Issue date Sep 7, 1982
    • Asahi Glass Company, Ltd.
    • Koji Oohasi
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Manufacture of improved fused cast refractory

    • Patent number 4,107,255
    • Issue date Aug 15, 1978
    • Corning Glass Works
    • Thomas A. Clishem
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    3763302

    • Patent number 3,763,302
    • Issue date Oct 2, 1973
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3487136

    • Patent number 3,487,136
    • Issue date Dec 30, 1969
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES