Additive for hydraulic compositions, and hydraulic composition using same
US-2024199490-A1 · Jun 20, 2024 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C04B28/02 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 2,119 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 179 |
| 2016 | 179 |
| 2017 | 188 |
| 2018 | 203 |
| 2019 | 202 |
| 2020 | 252 |
| 2021 | 170 |
| 2022 | 190 |
| 2023 | 193 |
| 2024 | 179 |
| 2025 | 147 |
| 2026 | 37 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water-soluble associative amphoteric polymer as a rheology modifier for subterranean treatments
US-2024199939-A1 · Jun 20, 2024 · US
Hydraulically-Bonded Multilayer Panel
US-2024059614-A1 · Feb 22, 2024 · US
Ground structure and construction method thereof
US-2024060247-A1 · Feb 22, 2024 · US
Biologically derived cement retarder
US-2024018409-A1 · Jan 18, 2024 · US
Mineral composition, especially for use in paper fillers and paper or plastic coatings
US-2015376022-A1 · Dec 31, 2015 · US
Hybrid latex comprising polymeric particles having core-shell structure and its preparation method
US-2015361208-A1 · Dec 17, 2015 · US
Cementing composition comprising nonionic hydrophobically-modified cellulose ethers and its use
US-2015353810-A1 · Dec 10, 2015 · US
Self-healing material and preparation process thereof
US-2015344365-A1 · Dec 3, 2015 · US
Polymer cement composition and cementing method
US-2015344366-A1 · Dec 3, 2015 · US
Method of cementing using polymeric retarder
US-9187373-B2 · Nov 17, 2015 · US
Methods for applying polymer-modified wet concrete mixtures
US-9186697-B2 · Nov 17, 2015 · US
Red Mud Solids in Spacer Fluids
US-2015315875-A1 · Nov 5, 2015 · US
Floatation separation apparatus, method of floatation separation, and method of manufacturing products using the same
US-9174856-B2 · Nov 3, 2015 · US
Method for producing a hydraulic binding agent
US-2015307398-A1 · Oct 29, 2015 · US
Waste crumb-rubber augmented masonry blocks
US-2015299043-A1 · Oct 22, 2015 · US
Process for the manufacture of a grout for concrete
US-2015284298-A1 · Oct 8, 2015 · US
Utilization of heavy oil ash to produce self-consolidated concrete
US-9150455-B2 · Oct 6, 2015 · US
Sprayable strain hardening brittle matrix composites with fire-resistance and high ductility
US-2015274594-A1 · Oct 1, 2015 · US
Process for producing hardening accelerators for mineral binder compositions
US-9145335-B2 · Sep 29, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B28/02?
- CPC C04B28/02 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C04B28/02 (Chemistry & Metallurgy)?
- Our database includes 2,119 publications tagged with this CPC code.
- Is patent activity under CPC C04B28/02 growing?
- Publication counts under this code: 179 in 2024 vs 147 in 2025 (latest complete years).