Wolfgang E. J. Herrmann

Person

  • Valle Arriba, VE

Patents Grantslast 30 patents

  • Information Patent Grant

    Communication with a downhole tool

    • Patent number 6,550,538
    • Issue date Apr 22, 2003
    • Schlumberger Technology Corporation
    • Wolfgang E. J. Herrmann
    • E21 - EARTH DRILLING MINING