Porous silica-alumina particles and manufacturing method therefor
US-2025206630-A1 · Jun 26, 2025 · US
from aqueous aluminate solutions by neutralisation with an acidic agent · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01F7/141 |
| Official title | from aqueous aluminate solutions by neutralisation with an acidic agent |
| Display label | from aqueous aluminate solutions by neutralisation with an acidic agent |
| Total patents | 27 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025206630-A1 · Jun 26, 2025 · US
US-12183900-B2 · Dec 31, 2024 · US
US-2024274913-A1 · Aug 15, 2024 · US
US-11559783-B2 · Jan 24, 2023 · US
US-10954596-B2 · Mar 23, 2021 · US
US-10858262-B2 · Dec 8, 2020 · US
US-10786802-B2 · Sep 29, 2020 · US
US-10723960-B2 · Jul 28, 2020 · US
US-10626337-B2 · Apr 21, 2020 · US
US-2020032396-A1 · Jan 30, 2020 · US
US-2019314784-A1 · Oct 17, 2019 · US
US-10358355-B2 · Jul 23, 2019 · US
US-10350580-B2 · Jul 16, 2019 · US
US-2019185335-A1 · Jun 20, 2019 · US
US-10307738-B2 · Jun 4, 2019 · US
US-10232346-B2 · Mar 19, 2019 · US
US-2018362861-A1 · Dec 20, 2018 · US
US-2018353932-A1 · Dec 13, 2018 · US
US-2018334391-A1 · Nov 22, 2018 · US
US-10130942-B2 · Nov 20, 2018 · US
Answers are generated from the same data shown on this page.