Priority Date: 07.03.12 (US 201213413811)

SURFACTANT ADDITIVES FOR STIMULATING SUBTERRANEAN FORMATION DURING FRACTURING OPERATIONS

  • Application ID: EP13706894
  • Status: GRANT OF PATENT INTENDED

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 C09 (DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR). 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

  • 07.03.2012 - Priority Date (US 201213413811)
  • 12.09.2013 - Publication A1 (WO2013133963)
  • 14.01.2015 - Publication A1 (EP2823015)

IPC Classification