Cork; Bark

Patents Grantslast 30 patents

  • Information Patent Grant

    Low density insulating compositions containing combusted bark parti...

    • Patent number 4,166,749
    • Issue date Sep 4, 1979
    • W. R. Grace & Co.
    • Robert W. Sterrett
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    3262165

    • Patent number 3,262,165
    • Issue date Jul 26, 1966
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    2227533

    • Patent number 2,227,533
    • Issue date Jan 7, 1941
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    1601285

    • Patent number 1,601,285
    • Issue date Sep 28, 1926
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents