High-carbon biogenic reagents and uses thereof
US-2021395631-A1 · Dec 23, 2021 · US
Preparation
Preparation · 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 | C01B32/312 |
| Official title | Preparation |
| Display label | Preparation |
| Total patents | 150 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 12 |
| 2019 | 13 |
| 2020 | 6 |
| 2021 | 24 |
| 2022 | 12 |
| 2023 | 23 |
| 2024 | 18 |
| 2025 | 19 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High-carbon biogenic reagents and uses thereof
US-2021395632-A1 · Dec 23, 2021 · US
High-carbon biogenic reagents and uses thereof
US-2021388280-A1 · Dec 16, 2021 · US
High-carbon biogenic reagents and uses thereof
US-2021355399-A1 · Nov 18, 2021 · US
High-carbon biogenic reagents and uses thereof
US-2021355403-A1 · Nov 18, 2021 · US
High-carbon biogenic reagents and uses thereof
US-2021355401-A1 · Nov 18, 2021 · US
Carbon-based porous material and preparation method and use thereof
US-11161745-B2 · Nov 2, 2021 · US
Systems and apparatus for production of high-carbon biogenic reagents
US-2021292671-A1 · Sep 23, 2021 · US
High-carbon biogenic reagents and uses thereof
US-2021261877-A1 · Aug 26, 2021 · US
Activated carbon fiber sheet for motor vehicle canister
US-2021198111-A1 · Jul 1, 2021 · US
Process for producing high-carbon biogenic reagents
US-10982161-B2 · Apr 20, 2021 · US
Carbonaceous material, carbonaceous material-containing electrode material for electric double layer capacitor, electrode for electric double layer capacitor, and electric double layer capacitor
US-10984963-B2 · Apr 20, 2021 · US
Method for manufacturing activated carbon
US-10815127-B2 · Oct 27, 2020 · US
Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysis
US-2020299599-A1 · Sep 24, 2020 · US
Preparation of polymeric resins and carbon materials
US-10654722-B2 · May 19, 2020 · US
Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysis
US-10611977-B2 · Apr 7, 2020 · US
Negative active material for rechargeable lithium battery, method for preparing same, negative electrode including the same and rechargeable lithium battery including same
US-2020083536-A1 · Mar 12, 2020 · US
Method of manufacturing an adsorbent and resulting composition of matter
US-2020047154-A1 · Feb 13, 2020 · US
Carbonaceous material and method for producing same
US-2019375641-A1 · Dec 12, 2019 · US
Carbonaceous material, carbonaceous material-containing electrode material for electric double layer capacitor, electrode for electric double layer capacitor, and electric double layer capacitor
US-2019378662-A1 · Dec 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/312?
- CPC C01B32/312 is the Cooperative Patent Classification code for “Preparation.”
- How many patents are filed under CPC C01B32/312 (Preparation)?
- Our database includes 150 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/312 growing?
- Publication counts under this code: 18 in 2024 vs 19 in 2025 (latest complete years).