TREA

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Industry

  • CPC
  • E01B9/20
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Parent Industries

EFIXED CONSTRUCTIONS E01Road, railway construction E01BPERMANENT WAY PERMANENT-WAY TOOLS MACHINES FOR MAKING RAILWAYS OF ALL KINDS E01B9/00Fastening rails on sleepers, or the like

Current Industry

E01B9/20by keys
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Keyway tie
    • Patent number 10,711,406
    • Issue date Jul 14, 2020
    • Voestalpine Nortrak Inc.
    • Steven R. Mattson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    3417921
    • Patent number 3,417,921
    • Issue date Dec 24, 1968
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1489374
    • Patent number 1,489,374
    • Issue date Apr 8, 1924
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1443253
    • Patent number 1,443,253
    • Issue date Jan 23, 1923
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

  • Information Patent Application

    KEYWAY TIE
    • Publication number 20190211512
    • Publication date Jul 11, 2019
    • voestalpine Nortrak Inc.
    • Steven R. Mattson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES