Agricultural waste ash as cementitious material and methods of making the same
US-12590031-B2 · Mar 31, 2026 · US
from combustion residues, {e.g. ashes or slags from waste incineration}({C04B7/243} , C04B7/26 take precedence)
from combustion residues, {e.g. ashes or slags from waste incineration}({C04B7/243} , C04B7/26 take precedence) · 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 | C04B7/28 |
| Official title | from combustion residues, {e.g. ashes or slags from waste incineration}({C04B7/243} , C04B7/26 take precedence) |
| Display label | from combustion residues, {e.g. ashes or slags from waste incineration}({C04B7/243} , C04B7/26 take precedence) |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Concrete compositions and apparatuses employing the same
US-12522535-B2 · Jan 13, 2026 · US
Coastal karst cement-based expanding grouting material and preparation method therefor
US-2025197279-A1 · Jun 19, 2025 · US
Low-cost four-element system cementitious material, preparation method and application thereof
US-2024208861-A1 · Jun 27, 2024 · US
Portland cement manufacture using municipal solid waste incineration ash
US-2024182362-A1 · Jun 6, 2024 · US
Three components kit for high performance green concrete
US-11976009-B1 · May 7, 2024 · US
Concrete compositions and apparatuses employing the same
US-2024010554-A1 · Jan 11, 2024 · US
Agricultural waste ash as cementitious material and methods of making the same
US-2023219849-A1 · Jul 13, 2023 · US
Alkali-silicate-based initiator component for use in a cementitious inorganic multi-component mortar system
US-2023192566-A1 · Jun 22, 2023 · US
Method to design for thickening time using cementitious blend composition
US-11629103-B2 · Apr 18, 2023 · US
Work method to design extended life slurries
US-11577997-B2 · Feb 14, 2023 · US
Method of producing cement clinker and a second calcined material
US-2023002277-A1 · Jan 5, 2023 · US
Portland cement manufacture using municipal solid waste incineration ash
US-2022332638-A1 · Oct 20, 2022 · US
Use of animal by-products for cement production
US-2022298067-A1 · Sep 22, 2022 · US
Method for designing low portland liquid cement with long shelf life
US-11447425-B2 · Sep 20, 2022 · US
Tailoring for temperature sensitivity of thickening time of cement slurry
US-11390567-B2 · Jul 19, 2022 · US
Work Method To Design Extended Life Slurries
US-2022009835-A1 · Jan 13, 2022 · US
Method To Design For Thickening Time Using Cementitious Blend Composition
US-2022009845-A1 · Jan 13, 2022 · US
Tailoring For Temperature Sensitivity Of Thickening Time Of Cement Slurry
US-2022009846-A1 · Jan 13, 2022 · US
Method For Designing Low Portland Liquid Cement With Long Shelf Life
US-2022009847-A1 · Jan 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B7/28?
- CPC C04B7/28 is the Cooperative Patent Classification code for “from combustion residues, {e.g. ashes or slags from waste incineration}({C04B7/243} , C04B7/26 take precedence).”
- How many patents are filed under CPC C04B7/28 (from combustion residues, {e.g. ashes or slags from waste incineration}({C04B7/243} , C04B7/26 take precedence))?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC C04B7/28 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).