Organically modified mineral micro-particles, methods of preparing the same and uses thereof
US-12569555-B2 · Mar 10, 2026 · 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 | C01B25/327 |
| Official title | {After-treatment} |
| Display label | After-treatment |
| Total patents | 58 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 8 |
| 2018 | 6 |
| 2019 | 6 |
| 2020 | 10 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for recovering phosphorus based on cyclic hydrothermal carbonization of wetland plants
US-2025382237-A1 · Dec 18, 2025 · US
Method for recovering phosphorus based on cyclic hydrothermal carbonization of wetland plants
US-12497340-B1 · Dec 16, 2025 · US
Low temperature synthesis of monazite-type materials
US-2025270090-A1 · Aug 28, 2025 · US
Synthesis of nano-hydroxyapatite from decarbonized eggshells
US-2025256963-A1 · Aug 14, 2025 · US
Production of surface-reacted calcium salts by grinding induced conversion
US-12331200-B2 · Jun 17, 2025 · US
Porous permanently polarized hydroxyapatite, a process for its production and uses thereof
US-2025099946-A1 · Mar 27, 2025 · US
Powder, method of producing powder and adsorption apparatus
US-2025050306-A1 · Feb 13, 2025 · US
Powder, method of producing powder and adsorption apparatus
US-12161988-B2 · Dec 10, 2024 · US
Permanently polarized hydroxyapatite, a process for its manufacture and uses thereof
US-11884542-B2 · Jan 30, 2024 · US
Powder, method of producing powder and adsorption apparatus
US-2023294068-A1 · Sep 21, 2023 · US
Method of producing product inorganic compound and product inorganic compound
US-11730856-B2 · Aug 22, 2023 · US
Powder, method of producing powder and adsorption apparatus
US-11701633-B2 · Jul 18, 2023 · US
Nutrient extraction and recovery device for isolation and separation of target products from animal produced waste streams
US-11697624-B2 · Jul 11, 2023 · US
Calcium phosphate granules and methods of making them
US-11498880-B2 · Nov 15, 2022 · US
Hydroxyapatite janus particles
US-11440927-B2 · Sep 13, 2022 · US
Whitlockite coating constructed on surface of calcium phosphate-based bioceramic substrate and preparation method therefor
US-11389564-B2 · Jul 19, 2022 · US
Physical sunscreen comprising hydroxyapatite or modified hydroxyapatite obtained from fisheries and aquaculture waste, process for its production and photoprotective compositions comprising it
US-2022183961-A1 · Jun 16, 2022 · US
Production of surface-reacted calcium salts by grinding induced conversion
US-2022089879-A1 · Mar 24, 2022 · US
Powder, method of producing powder and adsorption apparatus
US-11278864-B2 · Mar 22, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B25/327?
- CPC C01B25/327 is the Cooperative Patent Classification code for “After-treatment.”
- How many patents are filed under CPC C01B25/327 (After-treatment)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC C01B25/327 growing?
- Publication counts under this code: 2 in 2024 vs 7 in 2025 (latest complete years).