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CPC Subgroup
H01M 8/102

characterised by the chemical structure of the main chain of the ion-conducting polymer

Full Title

Fuel cells; Manufacture thereof > Fuel cells with solid electrolytes > characterised by the electrolyte material (H01M8/12 takes precedence) > Polymeric electrolyte materials > characterised by the chemical structure of the main chain of the ion-conducting polymer

7 direct subcodes

Child Classifications

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  • H01M 8/1023 having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
  • H01M 8/1025 having only carbon and oxygen, e.g. polyethers, sulfonated polyetheretherketones [S-PEEK], sulfonated polysaccharides, sulfonated celluloses or sulfonated polyesters
  • H01M 8/1027 having carbon, oxygen and other atoms, e.g. sulfonated polyethersulfones [S-PES]
  • H01M 8/103 having nitrogen, e.g. sulfonated polybenzimidazoles [S-PBI], polybenzimidazoles with phosphoric acid, sulfonated polyamides [S-PA] or sulfonated polyphosphazenes [S-PPh]
  • H01M 8/1032 having sulfur, e.g. sulfonated-polyethersulfones [S-PES]
  • H01M 8/1034 having phosphorus, e.g. sulfonated polyphosphazenes [S-PPh]
  • H01M 8/1037 having silicon, e.g. sulfonated crosslinked polydimethylsiloxanes

Top Applicants

Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 37,897
  2. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
  3. APPLIED MATERIALS US 21,640
  4. LG ENERGY SOLUTION KR 20,770
  5. LG CHEM KR 19,835
  6. TOKYO ELECTRON JP 18,519
  7. ROBERT BOSCH DE 14,595
  8. INTEL CORPORATION US 13,580
  9. MURATA MANUFACTURING COMPANY JP 12,151
  10. SAMSUNG SDI COMPANY KR 12,080