Methods for the control of shrinkage of cementitious compositions and cementitious grouts having controlled shrinkage
US-2026055028-A1 · Feb 26, 2026 · US
Metals, e.g. aluminium used as blowing agent
Metals, e.g. aluminium used as blowing agent · 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 | C04B22/04 |
| Official title | Metals, e.g. aluminium used as blowing agent |
| Display label | Metals, e.g. aluminium used as blowing agent |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Eutectic metal alloy-containing cement and methods of use thereof
US-2026028288-A1 · Jan 29, 2026 · US
Compositions for controlling microbially induced concrete corrosion
US-12528741-B2 · Jan 20, 2026 · US
Eutectic metal alloy-containing cement and methods of use thereof
US-12459871-B2 · Nov 4, 2025 · US
Coastal karst cement-based expanding grouting material and preparation method therefor
US-2025197279-A1 · Jun 19, 2025 · US
Eutectic metal alloy-containing cement and methods of use thereof
US-2025074834-A1 · Mar 6, 2025 · US
Thixotropy and rheology modifying admixture for cement-based mortars and production of cement-based compositions including the admixture
US-2024368033-A1 · Nov 7, 2024 · US
Method of preparing alkali-activated cement by stepwise calcination with sodium chloride
US-2024327282-A1 · Oct 3, 2024 · US
Carbonatable calcium silicate-based cements and concretes having mineral additives, and methods thereof
US-12098104-B2 · Sep 24, 2024 · US
Fire resistant interlayer
US-11912624-B2 · Feb 27, 2024 · US
Composition for forming casting mold and casting mold forming method
US-11845694-B2 · Dec 19, 2023 · US
Composite sintered body, semiconductor manufacturing apparatus member and method of producing composite sintered body
US-11830753-B2 · Nov 28, 2023 · US
Water Swellable Cement Sheath on Demand, with Sensing Capability
US-2023272262-A1 · Aug 31, 2023 · US
Water swellable cement sheath on demand, with sensing capability
US-11680198-B2 · Jun 20, 2023 · US
Compositions for controlling microbially induced concrete corrosion
US-2023072595-A1 · Mar 9, 2023 · US
Autoclaved cement compositions
US-2022220035-A1 · Jul 14, 2022 · US
Composition for forming casting mold and casting mold forming method
US-2022194855-A1 · Jun 23, 2022 · US
Carbonatable calcium silicate-based cements and concretes having mineral additives, and methods thereof
US-11352297-B2 · Jun 7, 2022 · US
Compositions and methods for well completions
US-11299958-B2 · Apr 12, 2022 · US
Fire resistant interlayer
US-2022106231-A1 · Apr 7, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B22/04?
- CPC C04B22/04 is the Cooperative Patent Classification code for “Metals, e.g. aluminium used as blowing agent.”
- How many patents are filed under CPC C04B22/04 (Metals, e.g. aluminium used as blowing agent)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC C04B22/04 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).