Priority Date: 02.05.13 (KR 20130049490)

Sulfonated polyethersulfone copolymer containing hydroxyl groups and preparation method thereof, polymer electrolyte membrane for fuel cells and membrane electrode assembly comprising the same

  • Application ID: EP14165774
  • Status: PATENT GRANTED

Applicant

Attorney

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Company dna advotec
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Specialization

This patent has the IPC combination C08 (ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON) and H01 (BASIC ELECTRIC ELEMENTS) is specialized in the combination C08 and H01. We found, that TransMIT GmbH, Riechelmann & Carlsohn GbR, Patentanwälte Rauschenbach, Boehmert & Boehmert Anwaltspartnerschaft mbB, Hoffmann Eitle PartmbB and 32 others are specialized in all of these IPC classes. For a similar patent, they might be a good choice.

Timeline

  • 02.05.2013 - Priority Date (KR 20130049490)
  • 24.12.2014 - Publication A1 (EP2816069)
  • 29.03.2017 - Publication B1 (EP2816069)