Priority Date: 30.12.04 (US 20040640686P)

Refractory materials

  • Application ID: EP15151131
  • Status: The patent has been granted


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This EP application has the IPC class C03 (GLASS; MINERAL OR SLAG WOOL) and C04 (CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES). Quermann Sturm Weilnau Patentanwälte Partnerschaft mbB is specialized in the combination C03 and C04. We found, that Saint-Gobain Recherche is specialized in all of these IPC classes as well. For a similar patent, they might be a good choice.


  • 30.12.2004 - Priority Date (US 20040640686P)
  • 29.04.2015 - Publication A1 (EP2865655)
  • 26.07.2017 - Publication B1 (EP2865655)