Priority Date: 25.06.12 (US 201261663871P)

METHOD TO PURIFY ALUMINUM AND USE OF PURIFIED ALUMINUM TO PURIFY SILICON

  • Application ID: EP13735143
  • Status: EXAMINATION IN PROGRESS

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Specialization

This EP application has the IPC combination C01 (INORGANIC CHEMISTRY) and C22 (METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS). We found, that Patentanwälte Rauschenbach, Lenzing Gerber Stute Partnerschaft von Patentanwälten mbB, Umicore RDI, Patpol Kancelaria Patentowa Sp z oo, Rio Tinto France SAS and 2 others are specialized in this combination either. For a similar patent, they might be a good choice.

Timeline

  • 25.06.2012 - Priority Date (US 201261663871P)
  • 03.01.2014 - Publication A1 (WO2014004392)
  • 29.04.2015 - Publication A1 (EP2864512)

IPC Classification