John G. Harkness

Person

  • Houston, TX, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Flow control in multilateral wells

    • Patent number 6,561,277
    • Issue date May 13, 2003
    • Schlumberger Technology Corporation
    • John Algeroy
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents