Methods of co-processing petroleum distillates and bio-based material through a reaction series
US-2022025279-A1 · Jan 27, 2022 · US
Naphthenic acids, TAN
Naphthenic acids, TAN · 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 | C10G2300/203 |
| Official title | Naphthenic acids, TAN |
| Display label | Naphthenic acids, TAN |
| Total patents | 74 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 6 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 11 |
| 2020 | 7 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Boiling free fractionation of hydrocarbon streams utilizing a membrane cascade
US-11084985-B2 · Aug 10, 2021 · US
Corrosion inhibitors for a refinery
US-2021180194-A1 · Jun 17, 2021 · US
Conserving fresh wash water usage in desalting crude oil
US-10927309-B2 · Feb 23, 2021 · US
Method for selective extraction of surfactants from crude oil
US-10883055-B2 · Jan 5, 2021 · US
Compositions and methods of removing contaminants in refinery desalting
US-2020339890-A1 · Oct 29, 2020 · US
Compositions and methods of removing contaminants in refinery desalting
US-10760008-B2 · Sep 1, 2020 · US
Conserving fresh wash water usage in desalting crude oil
US-2020270532-A1 · Aug 27, 2020 · US
Demetallization of hydrocarbons
US-10752842-B2 · Aug 25, 2020 · US
Lubricant base stock production from recycled oil
US-2020263107-A1 · Aug 20, 2020 · US
Conserving fresh wash water usage in desalting crude oil
US-10703989-B2 · Jul 7, 2020 · US
Process for conversion of high acidic crude oils
US-10676678-B2 · Jun 9, 2020 · US
Boiling free fractionation of hydrocarbon streams utilizing a membrane cascade
US-2019367820-A1 · Dec 5, 2019 · US
Fuel compositions
US-10457881-B2 · Oct 29, 2019 · US
Catalyst component for reducing the total acid number in refinery feedstocks
US-2019292468-A1 · Sep 26, 2019 · US
Process for conversion of high acidic crude oils
US-2019225892-A1 · Jul 25, 2019 · US
Process for removing oxygenates from naphtha
US-10329495-B2 · Jun 25, 2019 · US
Metallo-silicate catalyst (MSC) compositions, methods of preparation and methods of use in partial upgrading of hydrocarbon feedstocks
US-10272417-B2 · Apr 30, 2019 · US
Metallo-silicate catalyst (MSC) compositions, methods of preparation and methods of use in partial upgrading of hydrocarbon feedstocks
US-10265685-B2 · Apr 23, 2019 · US
Method for removing organic acids in crude oil using gas hydrate inhibitor and catalyst
US-10266777-B2 · Apr 23, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C10G2300/203?
- CPC C10G2300/203 is the Cooperative Patent Classification code for “Naphthenic acids, TAN.”
- How many patents are filed under CPC C10G2300/203 (Naphthenic acids, TAN)?
- Our database includes 74 publications tagged with this CPC code.
- Is patent activity under CPC C10G2300/203 growing?
- Publication counts under this code: 1 in 2024 vs 4 in 2025 (latest complete years).