Spherical high temperature high closure tolerant cashew nut shell liquid based proppant, methods of manufacture, and uses thereof
US-10479929-B2 · Nov 19, 2019 · US
Oil-based compositions
Oil-based compositions · 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 | C09K8/565 |
| Official title | Oil-based compositions |
| Display label | Oil-based compositions |
| 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 | 2 |
| 2016 | 15 |
| 2017 | 25 |
| 2018 | 16 |
| 2019 | 6 |
| 2020 | 13 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 7 |
| 2024 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of designing an invert emulsion fluid having high associative stability
US-10329471-B2 · Jun 25, 2019 · US
Multi-functional additive for oil or gas operations
US-10160903-B2 · Dec 25, 2018 · US
Metalate-based additives for use in subterranean formations
US-2018362825-A1 · Dec 20, 2018 · US
Consolidation of formation particulates
US-2018320055-A1 · Nov 8, 2018 · US
Method for circulation loss reduction
US-2018320475-A1 · Nov 8, 2018 · US
Invert emulsion treatment fluids comprising polar organic compounds and methods of use in subterranean operations
US-10119062-B2 · Nov 6, 2018 · US
Accelerated swelling of oil-swellable elastomers in a well
US-10100244-B2 · Oct 16, 2018 · US
Hydrocarbon-free emulsifier
US-2018282607-A1 · Oct 4, 2018 · US
Sand consolidation with petroleum products
US-2018273829-A1 · Sep 27, 2018 · US
Metalate-based additives for use in subterranean formations
US-10072199-B2 · Sep 11, 2018 · US
Permeability modification of subterranean formation for consolidation treatments
US-2018223170-A1 · Aug 9, 2018 · US
Consolidation compositions comprising multipodal silane coupling agents
US-10030193-B2 · Jul 24, 2018 · US
Method of fracturing with liquefied natural gas
US-10012062-B2 · Jul 3, 2018 · US
Enhancing SAG Resistance via Selection of Solids Based on Size and Material Composition
US-2018171209-A1 · Jun 21, 2018 · US
Particulate-stabilized emulsions for use in subterranean formation operations
US-2018112126-A1 · Apr 26, 2018 · US
Early viscosity enhancement of gelled oil
US-2018105733-A1 · Apr 19, 2018 · US
Dual-function nano-sized particles
US-9938448-B2 · Apr 10, 2018 · US
Invert emulsion treatment fluids comprising polar organic compounds and methods of use in subterranean operations
US-2017369760-A1 · Dec 28, 2017 · US
Silane compositions for use in subterranean formation operations
US-9850424-B2 · Dec 26, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K8/565?
- CPC C09K8/565 is the Cooperative Patent Classification code for “Oil-based compositions.”
- How many patents are filed under CPC C09K8/565 (Oil-based compositions)?
- Our database includes 101 publications tagged with this CPC code.
- Is patent activity under CPC C09K8/565 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).