Emulsified drilling fluids and methods of making and use thereof
US-2020407621-A1 · Dec 31, 2020 · US
obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution
obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution · 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 | C04B7/527 |
| Official title | {obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution} |
| Display label | obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution |
| Total patents | 101 |
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 | 1 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 21 |
| 2019 | 17 |
| 2020 | 22 |
| 2021 | 14 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore
US-10876028-B2 · Dec 29, 2020 · US
Development of anti-bit balling fluids
US-10851281-B2 · Dec 1, 2020 · US
Lubricants for water-based drilling fluids
US-2020248061-A1 · Aug 6, 2020 · US
Development of retarded acid system
US-10703957-B2 · Jul 7, 2020 · US
Invert emulsion based drilling fluid and methods of using same
US-10683447-B2 · Jun 16, 2020 · US
Ultralight inorganic foam and manufacture method thereof
US-10676402-B1 · Jun 9, 2020 · US
Methods of using drilling fluid compositions with enhanced rheology
US-2020140739-A1 · May 7, 2020 · US
Dispersant in cement formulations for oil and gas wells
US-10640695-B2 · May 5, 2020 · US
Development of anti-bit balling fluids
US-2020095491-A1 · Mar 26, 2020 · US
Emulsifier compositions for invert emulsion fluids and methods of using the same
US-2020087560-A1 · Mar 19, 2020 · US
Emulsifier compositions for invert emulsion fluids and methods of using the same
US-10570324-B2 · Feb 25, 2020 · US
Development of anti-bit balling fluids
US-2020040247-A1 · Feb 6, 2020 · US
Development of anti-bit balling fluids
US-10538692-B2 · Jan 21, 2020 · US
Anti-bit balling drilling fluids, and methods of making and use thereof
US-10526520-B2 · Jan 7, 2020 · US
Development of anti-bit balling fluids
US-10494560-B2 · Dec 3, 2019 · US
Cement slurries, cured cement and methods of making and use thereof
US-10494559-B2 · Dec 3, 2019 · US
Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore
US-10487254-B2 · Nov 26, 2019 · US
Development of anti-bit balling fluids
US-2019309210-A1 · Oct 10, 2019 · US
Spacer fluid compositions, methods, and systems for aqueous based drilling mud removal
US-2019292431-A1 · Sep 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B7/527?
- CPC C04B7/527 is the Cooperative Patent Classification code for “obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution.”
- How many patents are filed under CPC C04B7/527 (obtaining cements characterised by fineness, e.g. by multi-modal particle size distribution)?
- Our database includes 101 publications tagged with this CPC code.
- Is patent activity under CPC C04B7/527 growing?
- Publication counts under this code: 8 in 2024 vs 1 in 2025 (latest complete years).