Priority Date: 30.11.11 (CN 20111388215)

UNDERGROUND COAL GASIFICATION AND LINKAGE METHOD

  • Application ID: EP12853826
  • Status: GRANT OF PATENT INTENDED

Attorney

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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

  • 30.11.2011 - Priority Date (CN 20111388215)
  • 06.06.2013 - Publication A1 (WO2013078980)
  • 08.10.2014 - Publication A1 (EP2787164)

IPC Classification