TREA

Johann Steyn

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  • Germiston, ZA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rock bolt
    • Patent number 8,876,436
    • Issue date Nov 4, 2014
    • RSC Mining (Pty) Ltd
    • Johann Steyn
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rock bolt
    • Patent number 8,801,336
    • Issue date Aug 12, 2014
    • RSC Mining (Pty) Ltd
    • Johann Steyn
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rock bolt and rock bolt component
    • Patent number 8,696,249
    • Issue date Apr 15, 2014
    • RSC Mining (Pty) Ltd
    • Johann Steyn
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    ROCK BOLT
    • Publication number 20130156510
    • Publication date Jun 20, 2013
    • Johann Steyn
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    ROCK BOLT
    • Publication number 20130149042
    • Publication date Jun 13, 2013
    • Johann Steyn
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    ROCK BOLT AND ROCK BOLT COMPONENT
    • Publication number 20130149041
    • Publication date Jun 13, 2013
    • Johann Steyn
    • E21 - EARTH DRILLING MINING