Method for producing porous carbon, and electrode and catalyst support containing porous carbon produced by said production method
US-2021246033-A1 · Aug 12, 2021 · US
After-treatment
After-treatment · 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 | C01B32/354 |
| Official title | After-treatment |
| Display label | After-treatment |
| Total patents | 154 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 15 |
| 2020 | 13 |
| 2021 | 13 |
| 2022 | 12 |
| 2023 | 24 |
| 2024 | 30 |
| 2025 | 14 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Activated carbon, metal-carrying activated carbon using same and hydrogenation reaction catalyst
US-10974224-B2 · Apr 13, 2021 · US
Carbonaceous material for electric double layer capacitors and method for producing same
US-2021020385-A1 · Jan 21, 2021 · US
Carbonaceous material for electric double layer capacitors and method for producing same
US-10879014-B2 · Dec 29, 2020 · US
Modified carbonaceous material, carbon dioxide adsorbent and method for cellulose hydrolysis using the same
US-2020398248-A1 · Dec 24, 2020 · US
Activated carbon, metal-carrying activated carbon using same and hydrogenation reaction catalyst
US-2020384444-A1 · Dec 10, 2020 · US
Gaseous storage system, methods for making and using the same
US-10828620-B2 · Nov 10, 2020 · US
Activated carbon method and material
US-2020339426-A1 · Oct 29, 2020 · US
Activated carbon and production method thereof
US-2020338527-A1 · Oct 29, 2020 · US
Activated carbon and production method thereof
US-2020331763-A1 · Oct 22, 2020 · US
Sulfur-doped porous carbon derived from heavy hydrocarbons and methods for production thereof
US-2020299141-A1 · Sep 24, 2020 · US
Lithium ion-based internal hybrid electrochemical energy storage cell
US-10727002-B2 · Jul 28, 2020 · US
Sulfur-carbon composite and method for preparing same
US-2020152971-A1 · May 14, 2020 · US
Aqueous route to nitrogen-doped mesoporous carbons
US-2020071168-A1 · Mar 5, 2020 · US
Methods for producing carbon material-graphene composite films
US-2020048095-A1 · Feb 13, 2020 · US
Method of manufacturing an adsorbent and resulting composition of matter
US-2020047154-A1 · Feb 13, 2020 · US
Process for the hydrothermal treatment of high molar mass biomaterials
US-10518245-B2 · Dec 31, 2019 · US
Method for manufacturing activated carbon
US-10512891-B2 · Dec 24, 2019 · US
Method for manufacturing catalyst support, catalyst support manufactured thereby, and catalyst for fuel cell including the same
US-10511029-B2 · Dec 17, 2019 · US
Carbonaceous material and method for producing same
US-2019375641-A1 · Dec 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/354?
- CPC C01B32/354 is the Cooperative Patent Classification code for “After-treatment.”
- How many patents are filed under CPC C01B32/354 (After-treatment)?
- Our database includes 154 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/354 growing?
- Publication counts under this code: 30 in 2024 vs 14 in 2025 (latest complete years).