Microbial assisted phosphorous recovery under anaerobic condition
US-12351496-B2 · Jul 8, 2025 · US
Preparation by neutralisation of orthophosphoric acid
Preparation by neutralisation of orthophosphoric acid · 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 | C01B25/322 |
| Official title | {Preparation by neutralisation of orthophosphoric acid} |
| Display label | Preparation by neutralisation of orthophosphoric acid |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Production of surface-reacted calcium salts by grinding induced conversion
US-12331200-B2 · Jun 17, 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
Polymer-templated hydroxyapatite and uses thereof for purification of target molecules
US-2024367142-A1 · Nov 7, 2024 · US
Powder, method of producing powder and adsorption apparatus
US-2023294068-A1 · Sep 21, 2023 · US
Powder, method of producing powder and adsorption apparatus
US-11701633-B2 · Jul 18, 2023 · US
Microbial assisted phosphorous recovery under anaerobic condition
US-2022396509-A1 · Dec 15, 2022 · US
Process for producing a calcium phosphate reactant, reactant obtained and use thereof in the purification of liquid effluents
US-11498049-B2 · Nov 15, 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
Powder, method of producing powder and adsorption apparatus
US-2021402367-A1 · Dec 30, 2021 · US
Powder, method of producing powder and adsorption apparatus
US-11161090-B2 · Nov 2, 2021 · US
Spherical porous hydroxyapatite sorbent and methods thereof
US-10914712-B2 · Feb 9, 2021 · US
Physical solar filter consisting of substituted hydroxyapatite in an organic matrix
US-10813856-B2 · Oct 27, 2020 · US
Process for producing a calcium phosphate reactant, reactant obtained and use thereof in the purification of liquid effluents
US-10814303-B2 · Oct 27, 2020 · US
Process for producing a calcium phosphate reactant, reactant obtained and use thereof in the purification of liquid effluents
US-2020330955-A1 · Oct 22, 2020 · US
Method for producing octacalcium phosphate shaped product
US-10723625-B2 · Jul 28, 2020 · US
Powder, method of producing powder, and adsorption apparatus
US-10710050-B2 · Jul 14, 2020 · US
Powder, method of producing powder and adsorption apparatus
US-2020122115-A1 · Apr 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B25/322?
- CPC C01B25/322 is the Cooperative Patent Classification code for “Preparation by neutralisation of orthophosphoric acid.”
- How many patents are filed under CPC C01B25/322 (Preparation by neutralisation of orthophosphoric acid)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC C01B25/322 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).