Method for stabilizing wellbore, stabilized wellbore and wellbore stabilizing fluid
US-12540268-B2 · Feb 3, 2026 · US
Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34
Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34 · 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 | C04B7/345 |
| Official title | Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34 |
| Display label | Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34 |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 6 |
| 2022 | 1 |
| 2023 | 6 |
| 2024 | 6 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cement admixture, expansion material, and cement composition
US-12378161-B2 · Aug 5, 2025 · US
Ultra-high-toughness multifunctional self-assembly c-s-h gel material and preparation method thereof
US-2025034040-A1 · Jan 30, 2025 · US
Method for preparing general-purpose cement
US-2024360034-A1 · Oct 31, 2024 · US
Method of preparing alkali-activated cement by stepwise calcination with sodium chloride
US-2024327282-A1 · Oct 3, 2024 · US
Hydraulic composition for additive manufacturing device, and method for producing casting mold
US-12054426-B2 · Aug 6, 2024 · US
Method for stabilizing wellbore, stabilized wellbore and wellbore stabilizing fluid
US-2024240072-A1 · Jul 18, 2024 · US
In-situ aerogel type hydraulic cement composition for subterranean applications
US-11945993-B2 · Apr 2, 2024 · US
Composite materials and bonding elements from carbonation of calcium silicate and methods thereof
US-2024010564-A1 · Jan 11, 2024 · US
Synthetic pozzolans
US-2023339814-A1 · Oct 26, 2023 · US
Method for stabilizing wellbore, stabilized wellbore and wellbore stabilizing fluid
US-2023295482-A1 · Sep 21, 2023 · US
Synthetic pozzolans
US-11731906-B2 · Aug 22, 2023 · US
Composite materials and bonding elements from carbonation of calcium silicate and methods thereof
US-11718566-B2 · Aug 8, 2023 · US
In-Situ Aerogel Type Hydraulic Cement Composition For Subterranean Applications
US-2023036729-A1 · Feb 2, 2023 · US
Production of supplementary cementitious materials through semi-wet carbonation, cyclic carbonation, non-slurry carbonation, high temperature carbonation and granulation carbonation
US-2023023151-A1 · Jan 26, 2023 · US
Hydraulic composition for additive manufacturing device, and method for producing casting mold
US-2022033308-A1 · Feb 3, 2022 · US
Steam-assisted production of metal silicate cements, compositions and methods thereof
US-10752545-B2 · Aug 25, 2020 · US
Synthetic pozzolans
US-2020247717-A1 · Aug 6, 2020 · US
Cementitious material
US-2020189974-A1 · Jun 18, 2020 · US
Synthetic pozzolans
US-10662116-B2 · May 26, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B7/345?
- CPC C04B7/345 is the Cooperative Patent Classification code for “Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34.”
- How many patents are filed under CPC C04B7/345 (Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC C04B7/345 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).