Method and device for producing phosphorus
US-12559372-B2 · Feb 24, 2026 · US
Preparation of phosphorus
Preparation of phosphorus · 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 | C01B25/02 |
| Official title | Preparation of phosphorus |
| Display label | Preparation of phosphorus |
| Total patents | 31 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Phosphorus-carbon composite material, phosphorus-carbon composite material production method, negative electrode active material, negative electrode for lithium secondary battery, and lithium secondary battery
US-2025158030-A1 · May 15, 2025 · US
Black phosphorus-two dimensional material complex and method of manufacturing the same
US-2025126864-A1 · Apr 17, 2025 · US
Metal-free few-layer phosphorous nanomaterial: method for its preparation and use thereof
US-12214336-B2 · Feb 4, 2025 · US
Black phosphorus-two dimensional material complex and method of manufacturing the same
US-12211904-B2 · Jan 28, 2025 · US
Metal-free few-layer phosphorous nanomaterial: method for its preparation and use thereof
US-2024307857-A1 · Sep 19, 2024 · US
Molten metaphosphate electrolysis for production of white phosphorus
US-11767597-B2 · Sep 26, 2023 · US
Circular carbon process
US-2023227316-A1 · Jul 20, 2023 · US
Method and device for producing phosphorus
US-2023038150-A1 · Feb 9, 2023 · US
Two-dimensional material nanosheets with large area and controllable thickness and general preparation method therefor
US-11572279-B2 · Feb 7, 2023 · US
Two-dimensional material nanosheets with large area and controllable thickness and general preparation method therefor
US-2022380219-A1 · Dec 1, 2022 · US
Method for forming black phosphorus
US-2022250911-A1 · Aug 11, 2022 · US
Black phosphorus-two dimensional material complex and method of manufacturing the same
US-2022157947-A1 · May 19, 2022 · US
Molten metaphosphate electrolysis for production of white phosphorus
US-2022049364-A1 · Feb 17, 2022 · US
Metal-free few-layer phosphorous nanomaterial: method for its preparation and use thereof
US-2021362135-A1 · Nov 25, 2021 · US
Bipolar exfoliation and deposition of phosphorene onto negative feeding electrode
US-11034584-B1 · Jun 15, 2021 · US
Method and apparatus for producing a nanometer thick film of black phosphorus
US-2021039949-A1 · Feb 11, 2021 · US
Composition comprising optically and electronically active phosphorene
US-10906811-B2 · Feb 2, 2021 · US
Method and apparatus for producing a nanometer thick film of black phosphorus
US-10858253-B2 · Dec 8, 2020 · US
Composition comprising optically and electronically active phosphorene
US-2020354219-A1 · Nov 12, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B25/02?
- CPC C01B25/02 is the Cooperative Patent Classification code for “Preparation of phosphorus.”
- How many patents are filed under CPC C01B25/02 (Preparation of phosphorus)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC C01B25/02 growing?
- Publication counts under this code: 1 in 2024 vs 4 in 2025 (latest complete years).