TREA

Eike Herfurth

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  • Allensbach, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dosing pump system
    • Patent number 5,080,127
    • Issue date Jan 14, 1992
    • Elkem A/s
    • Eike Herfurth
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Spray nozzle
    • Patent number 5,005,768
    • Issue date Apr 9, 1991
    • Elkem A/s
    • Eike Herfurth
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method for adding silica fume to dry shotcrete mixture
    • Patent number 4,931,098
    • Issue date Jun 5, 1990
    • Elkem A/s
    • Tore Danielssen
    • B28 - WORKING CEMENT, CLAY, OR STONE