H01M 8/12 operating at high temperature, e.g. with stabilised ZrO electrolyte
Introduced: July 1974
Last revised: January 2016
Full Title
Fuel cells; Manufacture thereof > Fuel cells with solid electrolytes > operating at high temperature, e.g. with stabilised ZrO electrolyte
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Filing statistics
IPC H01M 8/12 belongs to the parent subclass H01M, which recorded 862,000 patent applications worldwide between 2013 and 2023. Annual filings grew from 44,284 in 2013 to 137,515 in 2023 (+211%). The most active applicants in class H01 are TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (43,574 applications), SAMSUNG ELECTRONICS COMPANY (42,206 applications) and LG CHEM (21,383 applications).
Source: EPO PATSTAT, worldwide filings
5 direct subcodes
Child Classifications
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- H01M 8/1213 characterised by the electrode/electrolyte combination or the supporting material
- H01M 8/1231 with both reactants being gaseous or vaporised
- H01M 8/1233 with one of the reactants being liquid, solid or liquid-charged
- H01M 8/124 characterised by the process of manufacturing or by the material of the electrolyte
- H01M 8/1286 Fuel cells applied on a support, e.g. miniature fuel cells deposited on silica supports
Top Applicants
Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
- SAMSUNG ELECTRONICS COMPANY KR 42,206
- LG CHEM KR 21,383
- APPLIED MATERIALS US 20,441
- LG ENERGY SOLUTION KR 20,279
- SAMSUNG DISPLAY KR 19,725
- CHINESE ACADEMY OF SCIENCES 19,400
- TOYOTA MOTOR CORPORATION 18,819
- SGCC(STATE GRID CORPORATION OF CHINA) 18,082
- TOKYO ELECTRON JP 17,634