Co2 conversion with nitride semiconductor-metal interface
US-2026055525-A1 · Feb 26, 2026 · US
Photocatalysts
Photocatalysts · 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 | C25B11/049 |
| Official title | Photocatalysts |
| Display label | Photocatalysts |
| Total patents | 43 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 9 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water electrolyzer and water electrolysis method
US-2026049402-A1 · Feb 19, 2026 · US
Electrolysis Reactor
US-2025341005-A1 · Nov 6, 2025 · US
Continuous flow reaction device for an electrochemical process
US-2025250691-A1 · Aug 7, 2025 · US
Semiconductor material based on metal nanowires and porous nitride and preparation method thereof
US-12343711-B2 · Jul 1, 2025 · US
Electrochemical carbon removal from water via carbon mineralization
US-2025178933-A1 · Jun 5, 2025 · US
Method for manufacturing photoelectrode
US-12305299-B2 · May 20, 2025 · US
Carbon dioxide gas-phase reduction device and carbon dioxide gas-phase reduction method
US-12305301-B2 · May 20, 2025 · US
Method for producing nitride semiconductor photoelectrode
US-12286718-B2 · Apr 29, 2025 · US
Preparation method and application of non-noble metal single atom catalyst
US-12203182-B2 · Jan 21, 2025 · US
Substantial Lifetime Enhancement of Si-Based Photoanodes Enabled by Amorphous TiO2 Coating with Improved Stoichiometry
US-2025019839-A1 · Jan 16, 2025 · US
System, apparatus, and method to create synthetic fuel
US-2024401211-A1 · Dec 5, 2024 · US
Photocatalyst production method, and hydrogen and oxygen production method using said photocatalyst
US-2024328012-A1 · Oct 3, 2024 · US
Crystallographic- and oxynitride-based surface
US-2024141519-A1 · May 2, 2024 · US
Carbon Dioxide Gas-Phase Reduction Device And Carbon Dioxide Gas-Phase Reduction Method
US-2024124996-A1 · Apr 18, 2024 · US
Method of water oxidation with a coated photoanode
US-2023381762-A1 · Nov 30, 2023 · US
Metal-free photocatalyst and a method of preparation thereof
US-11745171-B1 · Sep 5, 2023 · US
Carbon Dioxide Gas Phase Reduction Device and Carbon Dioxide Gas Phase Reduction Method
US-2023135736-A1 · May 4, 2023 · US
Back-illuminated photoelectrochemical cell
US-11603598-B2 · Mar 14, 2023 · US
Light absorbing device, manufacturing method thereof, and photoelectrode
US-11567249-B2 · Jan 31, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B11/049?
- CPC C25B11/049 is the Cooperative Patent Classification code for “Photocatalysts.”
- How many patents are filed under CPC C25B11/049 (Photocatalysts)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC C25B11/049 growing?
- Publication counts under this code: 4 in 2024 vs 9 in 2025 (latest complete years).