Method of using combined set-delayed cement compositions
US-10160900-B2 · Dec 25, 2018 · US
Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye
Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye · 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 | C04B24/18 |
| Official title | Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye |
| Display label | Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye |
| Total patents | 125 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 16 |
| 2017 | 15 |
| 2018 | 19 |
| 2019 | 18 |
| 2020 | 14 |
| 2021 | 8 |
| 2022 | 3 |
| 2023 | 7 |
| 2024 | 4 |
| 2025 | 9 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cement set activators for cement compositions and associated methods
US-10082001-B2 · Sep 25, 2018 · US
Wellbore servicing compositions and methods of making and using same
US-10066146-B2 · Sep 4, 2018 · US
Tunable control of pozzolan-lime cement compositions
US-10047270-B2 · Aug 14, 2018 · US
Concrete composition and making method
US-10035728-B2 · Jul 31, 2018 · US
Two component synthetic water retention agent and rheology modifier for use in cements, mortars and plasters
US-10005694-B2 · Jun 26, 2018 · US
Retarded cement compositions and methods for well completions
US-9975807-B2 · May 22, 2018 · US
Concrete composition and making method
US-2018118619-A1 · May 3, 2018 · US
Lignin-based surfactants
US-2018078916-A1 · Mar 22, 2018 · US
Cement set activators for set-delayed cement compositions and associated methods
US-9920235-B2 · Mar 20, 2018 · US
Accelerator for hydraulic binding agents with long processing time and very early strength
US-9919967-B2 · Mar 20, 2018 · US
Cement set activators for set-delayed cement compositions and associated methods
US-9909051-B2 · Mar 6, 2018 · US
Settable compositions and methods of use
US-9903177-B2 · Feb 27, 2018 · US
Methods of making and using lignin derivatives
US-2018037598-A1 · Feb 8, 2018 · US
Set-delayed cement compositions comprising pumice and associated methods
US-9878949-B2 · Jan 30, 2018 · US
Yielding of hydrated lime in set-delayed and other settable compositions
US-9869155-B2 · Jan 16, 2018 · US
Lost circulation compositions comprising pumice and associated methods
US-9856169-B2 · Jan 2, 2018 · US
Mitigation of contamination effects in set-delayed cement compositions comprising pumice and hydrated lime
US-9856167-B2 · Jan 2, 2018 · US
Method for producing a master mixture based on carbonaceous nanofillers and superplasticiser, and the use thereof in hardenable inorganic systems
US-9850363-B2 · Dec 26, 2017 · US
Cable or cable accessory comprising a fire-resistant layer
US-2017345528-A1 · Nov 30, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B24/18?
- CPC C04B24/18 is the Cooperative Patent Classification code for “Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye.”
- How many patents are filed under CPC C04B24/18 (Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye)?
- Our database includes 125 publications tagged with this CPC code.
- Is patent activity under CPC C04B24/18 growing?
- Publication counts under this code: 4 in 2024 vs 9 in 2025 (latest complete years).