Process for reduction of asphaltenes from marine fuels
US-12577489-B2 · Mar 17, 2026 · US
having at least one carboxyl group bound to an aromatic carbon atom {(C10L1/1802, C10L1/1805, C10L1/1808, C10L1/1811, C10L1/1814, C10L1/1817, C10L1/1885, C10L1/1886, C10L1/1888 take precedence)}
having at least one carboxyl group bound to an aromatic carbon atom {(C10L1/1802, C10L1/1805, C10L1/1808, C10L1/1811, C10L1/1814, C10L1/1817, C10L1/1885, C10L1/1886, C10L1/1888 take precedence)} · 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 | C10L1/189 |
| Official title | having at least one carboxyl group bound to an aromatic carbon atom {(C10L1/1802, C10L1/1805, C10L1/1808, C10L1/1811, C10L1/1814, C10L1/1817, C10L1/1885, C10L1/1886, C10L1/1888 take precedence)} |
| Display label | having at least one carboxyl group bound to an aromatic carbon atom {(C10L1/1802, C10L1/1805, C10L1/1808, C10L1/1811, C10L1/1814, C10L1/1817, C10L1/1885, C10L1/1886, C10L1/1888 take precedence)} |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel composition comprising detergent and quaternary ammonium salt additive
US-12570914-B2 · Mar 10, 2026 · US
Use and method
US-2025326978-A1 · Oct 23, 2025 · US
Process for reduction of asphaltenes from marine fuels
US-2025236804-A1 · Jul 24, 2025 · US
Asphaltene deposition control
US-2024301274-A1 · Sep 12, 2024 · US
Quaternary ammonium salt combinations for injector cleanliness
US-12043808-B2 · Jul 23, 2024 · US
Marine fuels
US-12031099-B2 · Jul 9, 2024 · US
Gasoline additive composition for improved engine performance
US-11884890-B1 · Jan 30, 2024 · US
Oil-in-water emulsions
US-2024010942-A1 · Jan 11, 2024 · US
Marine Fuels
US-2023257670-A1 · Aug 17, 2023 · US
Quaternary ammonium salt combinations for injector cleanliness
US-2023203394-A1 · Jun 29, 2023 · US
Methods to reduce frequency of diesel particulate filter regeneration
US-11685871-B2 · Jun 27, 2023 · US
Methods to reduce frequency of diesel particulate filter regeneration
US-2022325195-A1 · Oct 13, 2022 · US
Fuel oil composition
US-2022195321-A1 · Jun 23, 2022 · US
Hydrocarbon marine fuel oil
US-11066614-B2 · Jul 20, 2021 · US
Composition, method and use
US-11015137-B2 · May 25, 2021 · US
Oil anti-foulant and/or asphaltene agglomeration process
US-10995287-B2 · May 4, 2021 · US
Fuel Composition Comprising Detergent and Quaternary Ammonium Salt Additive
US-2020354642-A1 · Nov 12, 2020 · US
Oil Anti-Foulant and/or Asphaltene Agglomeration Process
US-2020224109-A1 · Jul 16, 2020 · US
Hydrocarbon Marine Fuel Oil
US-2020199472-A1 · Jun 25, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C10L1/189?
- CPC C10L1/189 is the Cooperative Patent Classification code for “having at least one carboxyl group bound to an aromatic carbon atom {(C10L1/1802, C10L1/1805, C10L1/1808, C10L1/1811, C10L1/1814, C10L1/1817, C10L1/1885, C10L1/1886, C10L1/1888 take precedence)}.”
- How many patents are filed under CPC C10L1/189 (having at least one carboxyl group bound to an aromatic carbon atom {(C10L1/1802, C10L1/1805, C10L1/1808, C10L1/1811, C10L1/1814, C10L1/1817, C10L1/1885, C10L1/1886, C10L1/1888 take precedence)})?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC C10L1/189 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).