Intermediate temperature solid oxide fuel cell cathode material
US-11152625-B2 · Oct 19, 2021 · US
Oxides; Hydroxides
Oxides; Hydroxides · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01G55/004 |
| Official title | {Oxides; Hydroxides} |
| Display label | Oxides; Hydroxides |
| Total patents | 87 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 11 |
| 2018 | 10 |
| 2019 | 7 |
| 2020 | 13 |
| 2021 | 11 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 10 |
| 2025 | 4 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrocatalytic materials for oxygen evolution of formula A1-xBxO3-δ
US-11142837-B2 · Oct 12, 2021 · US
Etching platinum-containing thin film using protective cap layer
US-2021313179-A1 · Oct 7, 2021 · US
Method for making iridium oxide nanoparticles
US-2021292187-A1 · Sep 23, 2021 · US
Iridium and / or iridium oxide microsphere-based porous material, preparation method therefor, and uses thereof
US-11124428-B2 · Sep 21, 2021 · US
Cathode, lithium-air battery comprising the same, and method of preparing the cathode
US-2021257628-A1 · Aug 19, 2021 · US
Annealing method and nitrogen-doped metal oxide structure
US-11084011-B2 · Aug 10, 2021 · US
Crystalline oxide film
US-2021226002-A1 · Jul 22, 2021 · US
Etching platinum-containing thin film using protective cap layer
US-11069530-B2 · Jul 20, 2021 · US
Population of metal oxide nanosheets, preparation method thereof, and electrical conductor and electronic device including the same
US-10993320-B2 · Apr 27, 2021 · US
Intermediate temperature solid oxide fuel cell cathode material
US-2021066727-A1 · Mar 4, 2021 · US
Ruthenium oxide powder, thick film resistor composition, thick film resistor paste, and thick film resistor
US-2020365299-A1 · Nov 19, 2020 · US
Ruthenium oxide powder, thick film resistor composition, thick film resistor paste, and thick film resistor
US-10832838-B1 · Nov 10, 2020 · US
Ruthenium oxide having a negative thermal expansion coefficient, and useable as a thermal expansion inhibitor
US-10676371-B2 · Jun 9, 2020 · US
Composite material, method of forming the same, and apparatus including composite material
US-10632722-B2 · Apr 28, 2020 · US
Cathode for electrolysis and method for producing same, and electrolytic cell for electrolysis
US-10626512-B2 · Apr 21, 2020 · US
Population of metal oxide nanosheets, preparation method thereof, and electrical conductor and electronic device including the same
US-2020113049-A1 · Apr 9, 2020 · US
Hydrogen-detecting composite particles and manufacturing method thereof
US-2020103385-A1 · Apr 2, 2020 · US
Low-noble-metal electrocatalysts
US-2020102661-A1 · Apr 2, 2020 · US
Iridium and / or iridium oxide microsphere-based porous material, preparation method therefor, and uses thereof
US-2020087164-A1 · Mar 19, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01G55/004?
- CPC C01G55/004 is the Cooperative Patent Classification code for “Oxides; Hydroxides.”
- How many patents are filed under CPC C01G55/004 (Oxides; Hydroxides)?
- Our database includes 87 publications tagged with this CPC code.
- Is patent activity under CPC C01G55/004 growing?
- Publication counts under this code: 10 in 2024 vs 4 in 2025 (latest complete years).