Aqueous emulsifier package with anionic surfactant for fuel emulsion
US-2023416627-A1 · Dec 28, 2023 · US
Sulfonic acids; Derivatives thereof, e.g. sulfonamides, sulfosuccinic acid esters
Sulfonic acids; Derivatives thereof, e.g. sulfonamides, sulfosuccinic acid esters · 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 | C10L1/2437 |
| Official title | {Sulfonic acids; Derivatives thereof, e.g. sulfonamides, sulfosuccinic acid esters} |
| Display label | Sulfonic acids; Derivatives thereof, e.g. sulfonamides, sulfosuccinic acid esters |
| Total patents | 72 |
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 | 7 |
| 2016 | 6 |
| 2017 | 10 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 11 |
| 2021 | 10 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 6 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Low molecular weight amide/ester containing quaternary ammonium salts
US-11820957-B2 · Nov 21, 2023 · US
Marine Fuels
US-2023257670-A1 · Aug 17, 2023 · US
Asphaltene solvation and dispersion process
US-11332683-B2 · May 17, 2022 · US
Oil-in-water emulsions
US-11268040-B2 · Mar 8, 2022 · US
Compositions and methods and uses relating thereto
US-11261389-B2 · Mar 1, 2022 · US
Ultra-low molecular weight imide containing quaternary ammonium salts having short hydrocarbon tails
US-11254646-B2 · Feb 22, 2022 · US
Winterized pour point depressants
US-11174446-B2 · Nov 16, 2021 · US
Lubricity and conductivity improver additive for ultra low sulfur diesel fuels
US-11149223-B2 · Oct 19, 2021 · US
Hydrocarbon marine fuel oil
US-11066614-B2 · Jul 20, 2021 · US
Low molecular weight amide/ester containing quaternary ammonium salts
US-2021214639-A1 · Jul 15, 2021 · US
Low molecular weight imide containing quaternary ammonium salts
US-2021207051-A1 · Jul 8, 2021 · US
Lubricity and conductivity improver additive for ultra low sulfur diesel fuels
US-2021189270-A1 · Jun 24, 2021 · US
Oil anti-foulant and/or asphaltene agglomeration process
US-10995287-B2 · May 4, 2021 · US
Asphaltene Solvation and Dispersion Process
US-2021079309-A1 · Mar 18, 2021 · US
Lubricity additive for transportation fuels
US-10927318-B2 · Feb 23, 2021 · US
Oil-in-water emulsions
US-2021032554-A1 · Feb 4, 2021 · US
Ultra-low molecular weight imide containing quaternary ammonium salts having short hydrocarbon tails
US-2020361891-A1 · Nov 19, 2020 · US
Compositions and methods and uses relating thereto
US-2020362255-A1 · Nov 19, 2020 · US
Paraffin inhibitors, and paraffin suppressant compositions and methods
US-10738138-B2 · Aug 11, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C10L1/2437?
- CPC C10L1/2437 is the Cooperative Patent Classification code for “Sulfonic acids; Derivatives thereof, e.g. sulfonamides, sulfosuccinic acid esters.”
- How many patents are filed under CPC C10L1/2437 (Sulfonic acids; Derivatives thereof, e.g. sulfonamides, sulfosuccinic acid esters)?
- Our database includes 72 publications tagged with this CPC code.
- Is patent activity under CPC C10L1/2437 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).