Oxides specially used in fuel cell operating at high temperature, e.g. SOFC

Oxides specially used in fuel cell operating at high temperature, e.g. SOFC · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeH01M4/9025
Official title{Oxides specially used in fuel cell operating at high temperature, e.g. SOFC}
Display labelOxides specially used in fuel cell operating at high temperature, e.g. SOFC
Total patents217

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
201520
201621
201713
201827
201919
202021
202125
202223
202312
202415
202519
20262

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC H01M4/9025?
CPC H01M4/9025 is the Cooperative Patent Classification code for “Oxides specially used in fuel cell operating at high temperature, e.g. SOFC.”
How many patents are filed under CPC H01M4/9025 (Oxides specially used in fuel cell operating at high temperature, e.g. SOFC)?
Our database includes 217 publications tagged with this CPC code.
Is patent activity under CPC H01M4/9025 growing?
Publication counts under this code: 15 in 2024 vs 19 in 2025 (latest complete years).