Dispersant in cement formulations for oil and gas wells
US-2018312439-A1 · Nov 1, 2018 · US
Alcohols; Phenols; Ethers
Alcohols; Phenols; Ethers · 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 | C04B24/02 |
| Official title | Alcohols; Phenols; Ethers |
| Display label | Alcohols; Phenols; Ethers |
| Total patents | 246 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 8 |
| 2017 | 19 |
| 2018 | 37 |
| 2019 | 38 |
| 2020 | 44 |
| 2021 | 19 |
| 2022 | 16 |
| 2023 | 13 |
| 2024 | 22 |
| 2025 | 12 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Porous body, honeycomb filter, method for producing porous body, and method for producing honeycomb filter
US-10099166-B2 · Oct 16, 2018 · US
Dispersant in cement formulations for oil and gas wells
US-2018282216-A1 · Oct 4, 2018 · US
Spacer fluids and cement slurries that include surfactants
US-2018223168-A1 · Aug 9, 2018 · US
Emulsified drilling fluids and methods of making and use thereof
US-2018223164-A1 · Aug 9, 2018 · US
Spacer fluid compositions that include surfactants
US-2018223169-A1 · Aug 9, 2018 · US
Anti-bit balling drilling fluids, and methods of making and use thereof
US-2018223160-A1 · Aug 9, 2018 · US
Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore
US-2018223156-A1 · Aug 9, 2018 · US
Development of anti-bit balling fluids
US-2018223162-A1 · Aug 9, 2018 · US
Lubricants for water-based drilling fluids
US-2018223153-A1 · Aug 9, 2018 · US
Cement slurries, cured cement and methods of making and use thereof
US-2018222797-A1 · Aug 9, 2018 · US
Development of anti-bit balling fluids
US-2018223161-A1 · Aug 9, 2018 · US
Emulsifier compositions for invert emulsion fluids and methods of using the same
US-2018223165-A1 · Aug 9, 2018 · US
Plastomer-modified asphalt binders meeting MSCR specifications, asphalt paving materials with such asphalt binders, and methods for fabricating such asphalt binders
US-9969649-B2 · May 15, 2018 · US
Method of using phthalic and terephthalic acids and derivatives thereof in well treatment operations
US-9919966-B2 · Mar 20, 2018 · US
Accelerator for hydraulic binding agents with long processing time and very early strength
US-9919967-B2 · Mar 20, 2018 · US
Modifying Cementitious Compositions Using Ketone Alcohol Oil Waste
US-2018044240-A1 · Feb 15, 2018 · US
Functionalized brine sludge material and a process for the preparation thereof
US-9890081-B2 · Feb 13, 2018 · US
Chemical additive for calcium sulphoaluminate-modified portland cement
US-9868674-B2 · Jan 16, 2018 · US
Macro defect free cement with improved moisture resistance
US-9850164-B2 · Dec 26, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B24/02?
- CPC C04B24/02 is the Cooperative Patent Classification code for “Alcohols; Phenols; Ethers.”
- How many patents are filed under CPC C04B24/02 (Alcohols; Phenols; Ethers)?
- Our database includes 246 publications tagged with this CPC code.
- Is patent activity under CPC C04B24/02 growing?
- Publication counts under this code: 22 in 2024 vs 12 in 2025 (latest complete years).