Sorel cement composition and method to cure loss of circulation
US-11148977-B2 · Oct 19, 2021 · US
Foams
Foams · 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 | C09K8/518 |
| Official title | Foams |
| Display label | Foams |
| Total patents | 108 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 8 |
| 2020 | 15 |
| 2021 | 15 |
| 2022 | 5 |
| 2023 | 15 |
| 2024 | 11 |
| 2025 | 10 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multifunctional foaming composition with wettability modifying, corrosion inhibitory and mineral scale inhibitory/dispersants properties for high temperature and ultra high salinity
US-11149185-B2 · Oct 19, 2021 · US
Foamed gel treatment fluids and methods of use
US-2021163811-A1 · Jun 3, 2021 · US
Method of inhibiting water penetration into oil- and gas-producing formations
US-10995255-B2 · May 4, 2021 · US
Compressed lost circulation materials
US-2021108123-A1 · Apr 15, 2021 · US
Foamed gel treatment fluids and methods of use
US-10961429-B2 · Mar 30, 2021 · US
Foamed treatment fluids for lost circulation control
US-10954426-B2 · Mar 23, 2021 · US
Methods for improving oil recovery within a subterranean formation
US-2021062613-A1 · Mar 4, 2021 · US
Methods for improving oil recovery within a subterranean formation
US-2021062630-A1 · Mar 4, 2021 · US
Composition and method for recovering hydrocarbon fluids from a subterranean reservoir
US-10889749-B2 · Jan 12, 2021 · US
In situ formed inorganic solids in fracture networks
US-10876042-B2 · Dec 29, 2020 · US
Polyurethane foamed annular chemical packer
US-10851617-B2 · Dec 1, 2020 · US
Ultra-dry three-phase flue gas foam for oil-gas fields and preparation method thereof
US-10793763-B2 · Oct 6, 2020 · US
Foamed Treatment Fluids for Lost Circulation Control
US-2020270507-A1 · Aug 27, 2020 · US
Device and method for establishing an artificial arterio-venous fistula
US-10751057-B2 · Aug 25, 2020 · US
Methods and systems incorporating N-(phosphonoalkyl)iminodiacetic acid particulates
US-10711181-B2 · Jul 14, 2020 · US
Multifunctional foaming composition with wettability modifying, corrosion inhibitory and mineral scale inhibitory/dispersants properties for high temperature and ultra high salinity
US-2020172791-A1 · Jun 4, 2020 · US
Ultra-dry three-phase flue gas foam for oil-gas fields and preparation method thereof
US-2020157406-A1 · May 21, 2020 · US
Polyurethane foamed annular chemical packer
US-10648280-B2 · May 12, 2020 · US
Multifunctional foaming composition with wettability modifying, corrosion inhibitory and mineral scale inhibitory/dispersants properties for high temperature and ultra high salinity
US-10597578-B2 · Mar 24, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K8/518?
- CPC C09K8/518 is the Cooperative Patent Classification code for “Foams.”
- How many patents are filed under CPC C09K8/518 (Foams)?
- Our database includes 108 publications tagged with this CPC code.
- Is patent activity under CPC C09K8/518 growing?
- Publication counts under this code: 11 in 2024 vs 10 in 2025 (latest complete years).