Hydrocarboxylic acid derivative as a retarder additive for oil and gas wells cementing
US-11970423-B2 · Apr 30, 2024 · US
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Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers {; Inhibiting the action of active ingredients}
Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers {; Inhibiting the action of active ingredients} · 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 | C04B40/06 |
| Official title | Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers {; Inhibiting the action of active ingredients} |
| Display label | Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers {; Inhibiting the action of active ingredients} |
| Total patents | 17 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 2 |
| 2018 | 3 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Passivated cement accelerator
US-11932806-B2 · Mar 19, 2024 · US
Hydrocarboxylic acid derivative as a retarder additive for oil and gas wells cementing
US-2023219847-A1 · Jul 13, 2023 · US
Method for designing low portland liquid cement with long shelf life
US-11447425-B2 · Sep 20, 2022 · US
Passivated Cement Accelerator
US-2022267663-A1 · Aug 25, 2022 · US
Passivated cement accelerator
US-11352543-B2 · Jun 7, 2022 · US
Method For Designing Low Portland Liquid Cement With Long Shelf Life
US-2022009847-A1 · Jan 13, 2022 · US
De novo synthesized nucleic acid libraries
US-2021180046-A1 · Jun 17, 2021 · US
De novo synthesized nucleic acid libraries
US-10975372-B2 · Apr 13, 2021 · US
Aqueous cement compositions incorporating particles that are activated to control rheology when water soluble portions of the particles are released in the presence of water
US-10858570-B2 · Dec 8, 2020 · US
Method of enhancing stability of cement slurries in well cementing operations
US-10844270-B2 · Nov 24, 2020 · US
De novo synthesized nucleic acid libraries
US-2018312834-A1 · Nov 1, 2018 · US
De novo synthesized nucleic acid libraries
US-10053688-B2 · Aug 21, 2018 · US
De novo synthesized nucleic acid libraries
US-2018051278-A1 · Feb 22, 2018 · US
EAFD stabilizer for returned concrete and mixer drum wash water
US-9623451-B2 · Apr 18, 2017 · US
Passivated Cement Accelerator
US-2017002257-A1 · Jan 5, 2017 · US
Aqueous cement compositions incorporating particles that are activated to control rheology when water soluble portions of the particles are released in the presence of water
US-2015184059-A1 · Jul 2, 2015 · US