Method for assessing quality of amine-based shale inhibitors
US-2025137935-A1 · May 1, 2025 · US
Clay-containing compositions (containing inorganic compounds C09K8/05)
Clay-containing compositions (containing inorganic compounds C09K8/05) · 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 | C09K8/14 |
| Official title | Clay-containing compositions (containing inorganic compounds C09K8/05) |
| Display label | Clay-containing compositions (containing inorganic compounds C09K8/05) |
| Total patents | 36 |
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 | 2 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus and method for measuring settling of weighting materials in drilling and completion fluids
US-12174169-B2 · Dec 24, 2024 · US
Method for drilling a wellbore with a reduced ferrite sag composition
US-12173225-B2 · Dec 24, 2024 · US
Method for drilling a wellbore with a reduced ferrite sag composition
US-2024043733-A1 · Feb 8, 2024 · US
Drilling fluid, drilling method, and drilling fluid additive
US-2024026205-A1 · Jan 25, 2024 · US
Water-based drilling, completion, and workover fluid composition with reduced barite sagging
US-11827837-B2 · Nov 28, 2023 · US
Apparatus and method for measuring settling of weighting materials in drilling and completion fluids
US-2023228729-A1 · Jul 20, 2023 · US
Methods of stabilizing carbonate-bearing formations
US-11447685-B2 · Sep 20, 2022 · US
Fiber silica composite microsphere for shale stratum, drilling fluid and preparation method and use thereof
US-11345841-B1 · May 31, 2022 · US
Thixotropic non-cementitious thermal grout and HDD or trough product line methods of application
US-11136266-B2 · Oct 5, 2021 · US
Functionalized nanosilica as shale inhibitor in water-based fluids
US-11084967-B2 · Aug 10, 2021 · US
Compositions and methods for wellbore strengthening applications
US-2021222045-A1 · Jul 22, 2021 · US
Methods of stabilizing carbonate-bearing formations
US-2021062068-A1 · Mar 4, 2021 · US
Functionalized nanosilica as shale inhibitor in water-based fluids
US-10899953-B2 · Jan 26, 2021 · US
Thixotropic Non-cementitious Thermal Grout and HDD or Trough Product Line Methods of Application
US-2020346980-A1 · Nov 5, 2020 · US
Water-based drilling, completion, and workover fluid composition with reduced barite sagging
US-2020317981-A1 · Oct 8, 2020 · US
Breaking Gel Compositions Containing Nanoparticles
US-2020270512-A1 · Aug 27, 2020 · US
Use of alkali metal silicates during formulation of drilling fluids
US-10703956-B2 · Jul 7, 2020 · US
Functionalized nanosilica as shale inhibitor in water-based fluids
US-2020181472-A1 · Jun 11, 2020 · US
Functionalized nanosilica as shale inhibitor in water-based fluids
US-10611942-B2 · Apr 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K8/14?
- CPC C09K8/14 is the Cooperative Patent Classification code for “Clay-containing compositions (containing inorganic compounds C09K8/05).”
- How many patents are filed under CPC C09K8/14 (Clay-containing compositions (containing inorganic compounds C09K8/05))?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC C09K8/14 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).