Water-soluble associative amphoteric polymer as a rheology modifier for subterranean treatments
US-2024199939-A1 · Jun 20, 2024 · US
obtained by reactions only involving carbon-to-carbon unsaturated bonds
obtained by reactions only involving carbon-to-carbon unsaturated bonds · 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 | C09K8/882 |
| Official title | {obtained by reactions only involving carbon-to-carbon unsaturated bonds} |
| Display label | obtained by reactions only involving carbon-to-carbon unsaturated bonds |
| Total patents | 359 |
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 | 19 |
| 2016 | 45 |
| 2017 | 36 |
| 2018 | 41 |
| 2019 | 44 |
| 2020 | 44 |
| 2021 | 34 |
| 2022 | 46 |
| 2023 | 25 |
| 2024 | 12 |
| 2025 | 10 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Viscous fluid dilution system and method thereof
US-2016367955-A1 · Dec 22, 2016 · US
Thermal insulating fluids
US-9523028-B2 · Dec 20, 2016 · US
Methods for Improving the Distribution of a Sealant Composition in a Wellbore and Treatment Fluids Providing the Same
US-2016355726-A1 · Dec 8, 2016 · US
Spread crosslinker and method of water control downhole
US-9512347-B2 · Dec 6, 2016 · US
Solid-supported crosslinker for treatment of a subterranean formation
US-9512349-B2 · Dec 6, 2016 · US
Compositions and Methods for Hydrophobically Modifying Fracture Faces
US-2016340571-A1 · Nov 24, 2016 · US
System and methodology for well treatment
US-2016340573-A1 · Nov 24, 2016 · US
Spread crosslinker and method
US-9499733-B2 · Nov 22, 2016 · US
Surfactant Responsive Emulsion Polymerization Micro-Gels
US-2016304646-A1 · Oct 20, 2016 · US
Fracturing fluids based on associative polymers and on labile surfactants
US-2016298023-A1 · Oct 13, 2016 · US
Treatment of subterranean formations with compositions including polyether-functionalized polysiloxanes
US-2016289526-A1 · Oct 6, 2016 · US
Viscous fluid dilution system and method thereof
US-9452394-B2 · Sep 27, 2016 · US
Fluid composition for stimulation in the field of oil or gas production
US-2016272876-A1 · Sep 22, 2016 · US
A high-temperature high-pressure (hthp) stable synthetic polymer for water based oil-well servicing fluids
US-2016272868-A1 · Sep 22, 2016 · US
Viscosifier for treatment of a subterranean formation
US-2016264835-A1 · Sep 15, 2016 · US
Wellbore servicing materials and methods of making and using same
US-9441151-B2 · Sep 13, 2016 · US
Viscosifier agent for oilfield fluids in hard conditions
US-2016257873-A1 · Sep 8, 2016 · US
Viscosifier for enhanced oil recovery
US-2016251564-A1 · Sep 1, 2016 · US
Method of treating a high-temperature well with a fluid containing a viscosifier and a stabilizer package
US-9410070-B2 · Aug 9, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K8/882?
- CPC C09K8/882 is the Cooperative Patent Classification code for “obtained by reactions only involving carbon-to-carbon unsaturated bonds.”
- How many patents are filed under CPC C09K8/882 (obtained by reactions only involving carbon-to-carbon unsaturated bonds)?
- Our database includes 359 publications tagged with this CPC code.
- Is patent activity under CPC C09K8/882 growing?
- Publication counts under this code: 12 in 2024 vs 10 in 2025 (latest complete years).