Priority Date: 21.12.12 (US 201213725444)

Enhanced device for determining the location of induced stress in stuck borehole tubulars

  • Application ID: EP13197618
  • Status: The patent has been granted


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This EP application has the IPC class E21 (EARTH OR ROCK DRILLING; MINING). GE International Inc. is specialised in E21 (EARTH OR ROCK DRILLING; MINING). 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.


  • 21.12.2012 - Priority Date (US 201213725444)
  • 09.07.2014 - Publication A2 (EP2752551)
  • 22.07.2015 - Publication A3 (EP2752551)
  • 28.02.2018 - Publication B1 (EP2752551)

IPC Classification