METHODS OF ISOLATING ANNULAR AREAS FORMED BY MULTIPLE CASING STRINGS IN A WELL

  • Application ID: EP12865923
  • Status: PATENT GRANTED

Applicant

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Specialization

This patent has the IPC class E21 (EARTH OR ROCK DRILLING; MINING) A.A. Thornton & Co. is specialized in E21. Here you find a list of all patent agent firms which are specialized in this IPC class. For a similar patent, they might be a good choice.

Timeline

  • 25.07.2013 - Publication A1 (WO2013109248)
  • 26.11.2014 - Publication A1 (EP2805010)
  • 01.02.2017 - Publication B1 (EP2805010)

IPC Classification