Priority Date: 11.07.11 (NO 20110001012)

OIL WELL DRILLING FLUIDS, OIL WELL CEMENT COMPOSITION, AND SLURRY OF WEIGHTING MATERIAL COMPRISING ILMENITE

  • Application ID: EP11864609
  • Status: The patent has been granted

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Specialization

This EP application has the IPC combination C04 (CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES) and C09 (DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR). We found, that Engel Patentanwaltskanzlei, Dr. Solf & Zapf, Gille Hrabal, Müller Schupfner & Partner Patent- und Rechtsanwaltspartnerschaft mbB, Weser & Kollegen and 14 others are specialized in this combination either. For a similar patent, they might be a good choice.

Timeline

  • 11.07.2011 - Priority Date (NO 20110001012)
  • 17.01.2013 - Publication A1 (WO2013009187)
  • 13.03.2013 - Publication A1 (EP2566931)
  • 27.09.2017 - Publication B1 (EP2566931)