METHOD AND APPARATUS FOR ACOUSTIC NOISE ISOLATION IN A SUBTERRANEAN WELL

  • Application ID: EP12871409
  • Status: APPLICATION WITHDRAWN

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 EP application has the IPC class 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.

Timeline

  • 19.09.2013 - Publication A1 (WO2013137845)
  • 21.01.2015 - Publication A1 (EP2825714)

IPC Classification