Use of organic nitrate and/or peroxide additives and method based thereon for deposit reduction in post diesel-combustion systems
US-12435288-B2 · Oct 7, 2025 · US
nitro compounds; nitrates; nitrites (C10L1/221 takes precedence)
nitro compounds; nitrates; nitrites (C10L1/221 takes 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 | C10L1/231 |
| Official title | {nitro compounds; nitrates; nitrites (C10L1/221 takes precedence)} |
| Display label | nitro compounds; nitrates; nitrites (C10L1/221 takes precedence) |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 9 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel compositions
US-12338405-B2 · Jun 24, 2025 · US
Use of a composition of additives for reducing diesel vehicle emissions
US-2024336857-A1 · Oct 10, 2024 · US
Diesel fuel composition and a method for producing a diesel fuel composition
US-2024327740-A1 · Oct 3, 2024 · US
Use of organic nitrate and/or peroxide additives and method based thereon for deposit reduction in post diesel-combustion systems
US-2024301311-A1 · Sep 12, 2024 · US
Diesel fuel composition and a method for producing a diesel fuel composition
US-12037556-B2 · Jul 16, 2024 · US
Fuel compositions
US-2024199965-A1 · Jun 20, 2024 · US
Mannich-based quaternary ammonium salt fuel additives
US-11999917-B2 · Jun 4, 2024 · US
Aryloxy alkylamines as fuel additives for reducing injector fouling in direct injection spark ignition gasoline engine
US-2024026239-A1 · Jan 25, 2024 · US
Use and method to reduce deposits in compression ignition internal combustion engines
US-11867117-B2 · Jan 9, 2024 · US
Additives for improving autoignition reactivity of hydrocarbon-based fuels
US-11814595-B1 · Nov 14, 2023 · US
Diesel fuel composition and a method for producing a diesel fuel composition
US-2023082920-A1 · Mar 16, 2023 · US
Mannich-based quaternary ammonium salt fuel additives
US-2023077913-A1 · Mar 16, 2023 · US
Nitrates of ethers of glycerol and ethanol as diesel cetane improvers and the production process of the same
US-2023002309-A1 · Jan 5, 2023 · US
Method for manufacturing a fuel component
US-11485924-B2 · Nov 1, 2022 · US
Drop-in fuel for reducing emissions in compression-ignited engines
US-11365364-B2 · Jun 21, 2022 · US
Drop-in fuel for reducing emissions in compression-ignited engines
US-2022106533-A1 · Apr 7, 2022 · US
Use and method to reduce deposits in compression ignition internal combustion engines
US-2022025286-A1 · Jan 27, 2022 · US
Fuel additives with low NOx emissions
US-11046903-B2 · Jun 29, 2021 · US
FUEL ADDITIVES WITH LOW NOx EMISSIONS
US-2021054298-A1 · Feb 25, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C10L1/231?
- CPC C10L1/231 is the Cooperative Patent Classification code for “nitro compounds; nitrates; nitrites (C10L1/221 takes precedence).”
- How many patents are filed under CPC C10L1/231 (nitro compounds; nitrates; nitrites (C10L1/221 takes precedence))?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC C10L1/231 growing?
- Publication counts under this code: 8 in 2024 vs 2 in 2025 (latest complete years).