Priority Date: 19.10.11 (US 201161548850P)

RISER SECTIONS AND METHODS FOR MAKING SAME

  • Application ID: EP12840931
  • Status: EXAMINATION IN PROGRESS

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Specialization

This patent has the IPC class E21 (EARTH OR ROCK DRILLING; MINING) 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

  • 19.10.2011 - Priority Date (US 201161548850P)
  • 25.04.2013 - Publication A1 (WO2013059680)
  • 29.10.2014 - Publication A1 (EP2795034)

IPC Classification