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DIFF Subgroup
H01M 8/241

with solid or matrix-supported electrolytes

Introduced: January 2016

Full Title

Fuel cells; Manufacture thereof > Grouping of fuel cells, e.g. stacking of fuel cells > with solid or matrix-supported electrolytes

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2016.

Child Classifications

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  • H01M 8/2418 Grouping by arranging unit cells in a plane (H01M8/2425, H01M8/244 take precedence) since 2016 IPC+CPC Available in IPC and CPC
  • H01M 8/242 comprising framed electrodes or intermediary frame-like gaskets (H01M8/2425, H01M8/244 take precedence) since 2016 IPC+CPC Available in IPC and CPC
  • H01M 8/244 with matrix-supported molten electrolyte 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