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
This EP application has the IPC class C08 (ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON) and H01 (BASIC ELECTRIC ELEMENTS). We found, that TransMIT GmbH, Riechelmann & Carlsohn GbR, Patentanwälte Rauschenbach, Boehmert & Boehmert Anwaltspartnerschaft mbB, Hoffmann Eitle PartmbB and 27 others are specialized in this combination either. For a similar patent, they might be a good choice.