TREA

Lining predominantly with metal

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Industry

  • CPC
  • E21D11/14
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D11/00Lining tunnels, galleries or other underground cavities

Current Industry

E21D11/14Lining predominantly with metal
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for renovating, repairing, reinforcing, protecting or newly...
    • Patent number 11,572,787
    • Issue date Feb 7, 2023
    • S&P Clever Reinforcement Company AG
    • Etienne Pellissier
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Helical segmental lining
    • Patent number 10,746,022
    • Issue date Aug 18, 2020
    • Behzad Khorshidi
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Positioner and positioning method for reinforcing steel bars of tun...
    • Patent number 10,662,772
    • Issue date May 26, 2020
    • CRRC Construction Engrg. Co., Ltd.
    • Meng Wang
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunneled gas storage
    • Patent number 9,359,137
    • Issue date Jun 7, 2016
    • TECTONA LTD.
    • Yossef Ram
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Corrugated structural panels
    • Patent number 4,991,999
    • Issue date Feb 12, 1991
    • Robert C. Helms
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Insulated tunnel liner and rehabilitation system
    • Patent number 4,940,360
    • Issue date Jul 10, 1990
    • Raymond L. Weholt
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Clamp
    • Patent number 4,305,561
    • Issue date Dec 15, 1981
    • Coal Industry (Patents) Limited
    • Rodney J. A. Hunter
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Method of shipping and assembling rectangular structural unit
    • Patent number 4,133,472
    • Issue date Jan 9, 1979
    • Herris M. Maxwell
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Tunnel liners and methods of making the same
    • Patent number 4,070,866
    • Issue date Jan 31, 1978
    • Commercial Shearing, Inc.
    • Ingvald O. Juvrud
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnelling and lining machine
    • Patent number 3,972,200
    • Issue date Aug 3, 1976
    • Bruno Scarpi
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3885395
    • Patent number 3,885,395
    • Issue date May 27, 1975
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3745772
    • Patent number 3,745,772
    • Issue date Jul 17, 1973
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3529346
    • Patent number 3,529,346
    • Issue date Sep 22, 1970
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3415063
    • Patent number 3,415,063
    • Issue date Dec 10, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2536759
    • Patent number 2,536,759
    • Issue date Jan 2, 1951
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1881098
    • Patent number 1,881,098
    • Issue date Oct 4, 1932
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1350556
    • Patent number 1,350,556
    • Issue date Aug 24, 1920
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents