Heteroatom-doped carbon catalyst for electrocatalytic halogen production
US-12404592-B2 · Sep 2, 2025 · US
Impregnation of carbon
Impregnation of carbon · 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 | C25B11/044 |
| Official title | Impregnation of carbon |
| Display label | Impregnation of carbon |
| Total patents | 37 |
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 | 2 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Carbon dioxide reduction device, and porous electrode
US-12398474-B2 · Aug 26, 2025 · US
Diamond electrode
US-2024425390-A1 · Dec 26, 2024 · US
A process for precipitating particles of platinum group metals
US-2024175156-A1 · May 30, 2024 · US
Carbon dioxide reduction device, and porous electrode
US-2023407494-A1 · Dec 21, 2023 · US
Carbon dioxide reduction device, and porous electrode
US-11788195-B2 · Oct 17, 2023 · US
3D reduced graphene oxide foams embedded with nanocatalysts, synthesizing methods and applications of same
US-11761099-B2 · Sep 19, 2023 · US
Electrochemical production of graphene sheets from coke or coal
US-11560631-B2 · Jan 24, 2023 · US
A method for efficient electrocatalytic synthesis of pure liquid product solutions including h2o2, oxygenates, ammonia, and so on
US-2022259746-A1 · Aug 18, 2022 · US
Electrolyzer and method for splitting water
US-11313044-B2 · Apr 26, 2022 · US
Graphene material inlaid with single metal atoms and preparing method and application thereof
US-11105009-B2 · Aug 31, 2021 · US
Carbon dioxide reduction device, and porous electrode
US-2021164117-A1 · Jun 3, 2021 · US
Carbon-alkaline earth metal catalysts for hydrazine oxidation and oxygen reduction
US-2021147240-A1 · May 20, 2021 · US
Electrolyzer and method for splitting water
US-2021054511-A1 · Feb 25, 2021 · US
3d reduced graphene oxide foams embedded with nanocatalysts, synthesizing methods and applications of same
US-2021002778-A1 · Jan 7, 2021 · US
Method of producing graphene
US-10865488-B2 · Dec 15, 2020 · US
3D reduced graphene oxide foams embedded with nanocatalysts, synthesizing methods and applications of same
US-10815580-B2 · Oct 27, 2020 · US
Fluorinated coatings for high performance electrodes
US-10650981-B2 · May 12, 2020 · US
Method of producing an electrode substrate made of carbon fibers
US-10629893-B2 · Apr 21, 2020 · US
Method of producing graphene
US-2020095694-A1 · Mar 26, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25B11/044?
- CPC C25B11/044 is the Cooperative Patent Classification code for “Impregnation of carbon.”
- How many patents are filed under CPC C25B11/044 (Impregnation of carbon)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC C25B11/044 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).