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DIFF Subgroup
H01M 8/102

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

Introduced: January 2016

Full Title

Full titles differ between systems:

IPC:

Fuel cells; Manufacture thereof > Fuel cells with solid electrolytes > characterised by the electrolyte material > Polymeric electrolyte materials > characterised by the chemical structure of the main chain of the ion-conducting polymer

CPC:

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

IPC and CPC are identically structured here. All 7 subcodes exist in both systems.

IPC defines codes here since 2016.

Child Classifications

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  • H01M 8/1023 having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes since 2016 IPC+CPC Available in IPC and CPC
  • H01M 8/1025 having only carbon and oxygen, e.g. polyethers, sulfonated polyetheretherketones [S-PEEK], sulfonated polysaccharides, sulfonated celluloses or sulfonated polyesters since 2016 IPC+CPC Available in IPC and CPC
  • H01M 8/1027 having carbon, oxygen and other atoms, e.g. sulfonated polyethersulfones [S-PES] since 2016 IPC+CPC Available in IPC and CPC
  • H01M 8/103 having nitrogen, e.g. sulfonated polybenzimidazoles [S-PBI], polybenzimidazoles with phosphoric acid, sulfonated polyamides [S-PA] or sulfonated polyphosphazenes [S-PPh] since 2016 IPC+CPC Available in IPC and CPC
  • H01M 8/1032 having sulfur, e.g. sulfonated-polyethersulfones [S-PES] since 2016 IPC+CPC Available in IPC and CPC
  • H01M 8/1034 having phosphorus, e.g. sulfonated polyphosphazenes [S-PPh] since 2016 IPC+CPC Available in IPC and CPC
  • H01M 8/1037 having silicon, e.g. sulfonated crosslinked polydimethylsiloxanes since 2016 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

  1. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
  2. SAMSUNG ELECTRONICS COMPANY KR 42,206
  3. LG CHEM KR 21,383
  4. APPLIED MATERIALS US 20,441
  5. LG ENERGY SOLUTION KR 20,279
  6. SAMSUNG DISPLAY KR 19,725
  7. CHINESE ACADEMY OF SCIENCES 19,400
  8. TOYOTA MOTOR CORPORATION 18,819
  9. SGCC(STATE GRID CORPORATION OF CHINA) 18,082
  10. TOKYO ELECTRON JP 17,634

Top Applicants (CPC)

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