Priority Date: 09.11.11 (US 201113292516)

ENGINEERED METHODS AND MATERIALS FOR WELLBORE STRENGTHENING IN SUBTERRANEAN OPERATIONS

  • Application ID: EP12780964
  • Status: EXAMINATION IN PROGRESS

Applicant

Attorney

Employment test 51 - 200 employees
Company dna hoffmann eitle
operating since 1892
Headquarter in Munich and 4 offices
active in Legal Services and IP Portfolio Processing

Specialization

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

  • 09.11.2011 - Priority Date (US 201113292516)
  • 16.05.2013 - Publication A2 (WO2013070357)
  • 17.09.2014 - Publication A2 (EP2776658)

IPC Classification