Quaternized fatty amines, amidoamines and their derivatives from natural oil
US-9815780-B2 · Nov 14, 2017 · US
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations · 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 | C09K8/00 |
| Official title | Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations |
| Display label | Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations |
| Total patents | 111 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 29 |
| 2017 | 21 |
| 2018 | 13 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 9 |
| 2022 | 3 |
| 2024 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Esteramines and derivatives from natural oil metathesis
US-9796662-B2 · Oct 24, 2017 · US
Alkaline persulfate for low-temperature breaking of polymer viscosified fluid
US-9796900-B2 · Oct 24, 2017 · US
Microemulsions and uses thereof
US-2017191008-A1 · Jul 6, 2017 · US
Fatty amides and derivatives from natural oil metathesis
US-2017158617-A1 · Jun 8, 2017 · US
Methods for servicing subterranean wells
US-9657557-B2 · May 23, 2017 · US
Sulfide Stress Cracking Inhibitors
US-2017121584-A1 · May 4, 2017 · US
Sulfide stress cracking inhibitors
US-9587157-B2 · Mar 7, 2017 · US
Emulsion breakers including polyester functionalities
US-9587155-B2 · Mar 7, 2017 · US
Imidazoline amides and derivitives from natural oil metathesis
US-9573884-B2 · Feb 21, 2017 · US
Cleaning and separating fluid and debris from core samples and coring systems
US-2016376861-A1 · Dec 29, 2016 · US
Polyurethane grout compositions
US-9527949-B2 · Dec 27, 2016 · US
Invert emulsion fluid containing a hygroscopic liquid, a polymeric suspending agent, and low-density solids
US-9518206-B2 · Dec 13, 2016 · US
Alkoxylated fatty esters and derivatives from natural oil metathesis
US-9506013-B2 · Nov 29, 2016 · US
Fatty amines, amidoamines, and their derivatives from natural oil metathesis
US-9493727-B2 · Nov 15, 2016 · US
Vapor-depositing metal oxide on surfaces for wells or pipelines to reduce scale
US-2016290103-A1 · Oct 6, 2016 · US
Sulfide stress cracking inhibitors
US-2016272867-A1 · Sep 22, 2016 · US
Detergent compositions
US-2016264542-A1 · Sep 15, 2016 · US
Detergent compositions
US-2016264561-A1 · Sep 15, 2016 · US
Material processing for components
US-2016237530-A1 · Aug 18, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K8/00?
- CPC C09K8/00 is the Cooperative Patent Classification code for “Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations.”
- How many patents are filed under CPC C09K8/00 (Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations)?
- Our database includes 111 publications tagged with this CPC code.
- Is patent activity under CPC C09K8/00 growing?
- Publication counts under this code: 3 in 2022 vs 3 in 2024 (latest complete years).