Priority Date: 08.12.08 (US 20080329938)

A PROCESS FOR THE REGENERATION OF AN ION EXCHANGE RESIN USING SULFUROUS ACID

  • Application ID: EP09831349
  • Status: The application is deemed to be withdrawn

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Specialization

This EP application has the IPC class B01 (PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL). Shell International B.V. and Notarbartolo & Gervasi GmbH are specialized in B01. Notarbartolo & Gervasi GmbH, Shell International B.V. is specialised in B01 (PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL). 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

  • 08.12.2008 - Priority Date (US 20080329938)
  • 17.06.2010 - Publication A1 (WO2010066040)
  • 12.10.2011 - Publication A1 (EP2373420)

IPC Classification