Priority Date: 31.08.11 (EP 20110179545)

ANNULAR BARRIER WITH PRESSURE AMPLIFICATION

  • Application ID: EP12756159
  • Status: GRANT OF PATENT INTENDED

Applicant

Technology company logo small
Technology Company

Attorney

Employment test 11 - 50 employees
Company dna hoffmann dragsted as
operating since 2008
Headquarter in Copenhagen and 2 offices
active in Legal Services, IP Consulting, and IP Portfolio Processing

Specialization

This EP application has the IPC class E21 (EARTH OR ROCK DRILLING; MINING). Hoffmann Dragsted AS 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

  • 31.08.2011 - Priority Date (EP 20110179545)
  • 07.03.2013 - Publication A1 (WO2013030283)
  • 09.07.2014 - Publication A1 (EP2751382)

IPC Classification