Priority Date: 13.07.12 (US 201261671579P)

ROTARY DRILL BITS WITH BACK-UP CUTIING ELEMENTS TO OPTIMIZE BIT LIFE

  • Application ID: EP12880858
  • Status: APPLICATION WITHDRAWN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 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

  • 13.07.2012 - Priority Date (US 201261671579P)
  • 16.01.2014 - Publication A1 (WO2014011197)
  • 20.05.2015 - Publication A1 (EP2872723)

IPC Classification