High-carbon biogenic reagents and uses thereof
US-12404472-B2 · Sep 2, 2025 · US
Light metals {(C22B4/005 takes precedence)}
Light metals {(C22B4/005 takes precedence)} · 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 | C22B4/02 |
| Official title | Light metals {(C22B4/005 takes precedence)} |
| Display label | Light metals {(C22B4/005 takes precedence)} |
| Total patents | 77 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 1 |
| 2017 | 6 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 19 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 10 |
| 2025 | 13 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysis
US-2025257277-A1 · Aug 14, 2025 · US
Method of extracting metal from salt solution derived from spent battery
US-2025149669-A1 · May 8, 2025 · US
Systems and apparatus for production of high-carbon biogenic reagents
US-2024343985-A1 · Oct 17, 2024 · US
High-carbon biogenic reagents and uses thereof
US-12084623-B2 · Sep 10, 2024 · US
High-carbon biogenic reagents and uses thereof
US-2024271052-A1 · Aug 15, 2024 · US
High-carbon biogenic reagents and uses thereof
US-2024263095-A1 · Aug 8, 2024 · US
High-carbon biogenic reagents and uses thereof
US-2024158710-A1 · May 16, 2024 · US
High-carbon biogenic reagents and uses thereof
US-2024132795-A1 · Apr 25, 2024 · US
Systems and apparatus for production of high-carbon biogenic reagents
US-11965139-B2 · Apr 23, 2024 · US
High-carbon biogenic reagents and uses thereof
US-11959038-B2 · Apr 16, 2024 · US
High-carbon biogenic reagents and uses thereof
US-11891582-B2 · Feb 6, 2024 · US
High-carbon biogenic reagents and uses thereof
US-11879107-B2 · Jan 23, 2024 · US
Process for producing high-carbon biogenic reagents
US-2023303939-A1 · Sep 28, 2023 · US
Process for producing high-carbon biogenic reagents
US-11674101-B2 · Jun 13, 2023 · US
Use of reactor outputs to purify materials, and related systems
US-2023174396-A1 · Jun 8, 2023 · US
High-carbon biogenic reagents and uses thereof
US-2023159840-A1 · May 25, 2023 · US
High-carbon biogenic reagents and uses thereof
US-2023092078-A1 · Mar 23, 2023 · US
Systems and apparatus for production of high-carbon biogenic reagents
US-2022315852-A1 · Oct 6, 2022 · US
Systems and apparatus for production of high-carbon biogenic reagents
US-11359154-B2 · Jun 14, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B4/02?
- CPC C22B4/02 is the Cooperative Patent Classification code for “Light metals {(C22B4/005 takes precedence)}.”
- How many patents are filed under CPC C22B4/02 (Light metals {(C22B4/005 takes precedence)})?
- Our database includes 77 publications tagged with this CPC code.
- Is patent activity under CPC C22B4/02 growing?
- Publication counts under this code: 10 in 2024 vs 13 in 2025 (latest complete years).