Coal gangue-based ecological restoration material, and preparation method and application thereof
US-2024199956-A1 · Jun 20, 2024 · US
from peat, brown coal, and similar vegetable deposits
from peat, brown coal, and similar vegetable deposits · 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 | C05F11/02 |
| Official title | from peat, brown coal, and similar vegetable deposits |
| Display label | from peat, brown coal, and similar vegetable deposits |
| Total patents | 151 |
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 | 19 |
| 2017 | 14 |
| 2018 | 12 |
| 2019 | 19 |
| 2020 | 12 |
| 2021 | 20 |
| 2022 | 11 |
| 2023 | 7 |
| 2024 | 17 |
| 2025 | 14 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Doped carbon dots and uses thereof
US-2024016157-A1 · Jan 18, 2024 · US
Method for application of biochar in turf grass and landscaping environments
US-2019375691-A1 · Dec 12, 2019 · US
Mobile charcoal/biochar production and pelletizer system and method thereof
US-10501689-B2 · Dec 10, 2019 · US
Method for pyrolysis treatment of oily sludge and environment-friendly renovation of the residue thereof with humic acid substance
US-10487265-B1 · Nov 26, 2019 · US
Biochar suspended solution
US-10472298-B2 · Nov 12, 2019 · US
Method for application of biochar in turf grass and landscaping environments
US-10392313-B2 · Aug 27, 2019 · US
Biochar extracts and method for capturing material extracted from biochar
US-10265670-B2 · Apr 23, 2019 · US
Biochar suspended solution
US-2019071371-A1 · Mar 7, 2019 · US
Biochar as a microbial carrier
US-10173937-B2 · Jan 8, 2019 · US
Biochars and biochar treatment processes
US-2018327329-A1 · Nov 15, 2018 · US
Additive infused biochar
US-10118870-B2 · Nov 6, 2018 · US
Biochars and biochar treatment processes
US-10106471-B2 · Oct 23, 2018 · US
Method for enhancing soil growth using bio-char
US-10093588-B2 · Oct 9, 2018 · US
Biochar suspended solution
US-10059634-B2 · Aug 28, 2018 · US
Biochars and biochar treatment processes
US-10023503-B2 · Jul 17, 2018 · US
Polyurethane foam for use as soil improver
US-9988575-B2 · Jun 5, 2018 · US
Biochar extracts and method for capturing material extracted from biochar
US-2018126349-A1 · May 10, 2018 · US
Method for making sequesterable biochar
US-9963650-B2 · May 8, 2018 · US
Enhanced biochar
US-2018118631-A1 · May 3, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C05F11/02?
- CPC C05F11/02 is the Cooperative Patent Classification code for “from peat, brown coal, and similar vegetable deposits.”
- How many patents are filed under CPC C05F11/02 (from peat, brown coal, and similar vegetable deposits)?
- Our database includes 151 publications tagged with this CPC code.
- Is patent activity under CPC C05F11/02 growing?
- Publication counts under this code: 17 in 2024 vs 14 in 2025 (latest complete years).