Solidified porous carbon material and method of manufacturing the same
US-11707727-B2 · Jul 25, 2023 · US
Metallic compounds
Metallic compounds · 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 | C01B32/348 |
| Official title | Metallic compounds |
| Display label | Metallic compounds |
| Total patents | 102 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 5 |
| 2017 | 7 |
| 2018 | 3 |
| 2019 | 8 |
| 2020 | 7 |
| 2021 | 9 |
| 2022 | 7 |
| 2023 | 19 |
| 2024 | 17 |
| 2025 | 13 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Lignin-based hierarchical porous carbon with high specific surface area and preparation method and application thereof
US-11691121-B2 · Jul 4, 2023 · US
Carbonized amino acid modified lignin and preparation method therefor
US-11691881-B2 · Jul 4, 2023 · US
Activated Carbon and Method of Fabrication Thereof
US-2023149893-A1 · May 18, 2023 · US
Lignin-based hierarchical porous carbon with high specific surface area and preparation method and application thereof
US-2023127268-A1 · Apr 27, 2023 · US
Carbonaceous material and method for producing same
US-11634330-B2 · Apr 25, 2023 · US
Method of synthesizing porous composite including single atom metal catalysts and nitrogen atoms in hierarchical carbon material from carbon dioxide containing gas
US-2023055011-A1 · Feb 23, 2023 · US
Immobilized selenium in a porous carbon with the presence of oxygen, a method of making, and uses of immobilized selenium in a rechargeable battery
US-11588149-B2 · Feb 21, 2023 · US
Carbonaceous material, method for producing same, electrode active material for electric double layer capacitors, electrode for electric double layer capacitors, and electric double layer capacitor
US-2023043072-A1 · Feb 9, 2023 · US
Method of making activated carbon sorbent from seagrass for organic pollutant removal from water
US-11517876-B1 · Dec 6, 2022 · US
Carbon material and electrode material for power storage device
US-2022352516-A1 · Nov 3, 2022 · US
Method of preparing carbonaceous material capable of fixing arsenic and application thereof
US-2022340462-A1 · Oct 27, 2022 · US
Carbonaceous material, method for producing same, electrode active material for electrochemical device, electrode for electrochemical device, and electrochemical device
US-2022278327-A1 · Sep 1, 2022 · US
Harmful-to-health substance removing agent and health food
US-2022240552-A1 · Aug 4, 2022 · US
Method for producing porous carbon material
US-11377358-B2 · Jul 5, 2022 · US
Activated carbon and method for producing same
US-2022143572-A1 · May 12, 2022 · US
Carbonaceous material for sodium ion secondary battery negative electrode, and sodium ion secondary battery using carbonaceous material for sodium ion secondary battery negative electrode
US-2021376321-A1 · Dec 2, 2021 · US
Method of preparing soft carbon material for high-voltage supercapacitor and asymmetrical supercapacitor
US-2021343485-A1 · Nov 4, 2021 · US
Microporous carbon materials to separate nitrogen in associated and non-associated natural gas streams
US-2021308652-A1 · Oct 7, 2021 · US
Nitrogen enriched carbon derived from Albizia procera leaves
US-11124415-B2 · Sep 21, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/348?
- CPC C01B32/348 is the Cooperative Patent Classification code for “Metallic compounds.”
- How many patents are filed under CPC C01B32/348 (Metallic compounds)?
- Our database includes 102 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/348 growing?
- Publication counts under this code: 17 in 2024 vs 13 in 2025 (latest complete years).