A method for purification of liquefied waste plastics using recycled aqueous stream
US-2026015548-A1 · Jan 15, 2026 · US
including at least one alkaline treatment step
including at least one alkaline treatment step · 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 | C10G53/12 |
| Official title | including at least one alkaline treatment step |
| Display label | including at least one alkaline treatment step |
| Total patents | 50 |
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 | 13 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 9 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for removing chlorine from waste plastic pyrolysis oil
US-2025163332-A1 · May 22, 2025 · US
Methods for removal of silicon and chloride contaminants from mixed plastic waste based pyrolysis oil
US-2024352346-A1 · Oct 24, 2024 · US
Method for purifying hydrocarbon feedstock in the presence of a solvent and use thereof
US-2024199963-A1 · Jun 20, 2024 · US
Adsorption systems and processes for recovering PNA and HPNA compounds from petroleum based materials and regenerating adsorbents
US-11549065-B2 · Jan 10, 2023 · US
Adsorption systems and processes for recovering pna and hpna compounds from petroleum based materials and regenerating adsorbents
US-2022213391-A1 · Jul 7, 2022 · US
Chemical process for sulfur reduction of hydrocarbons
US-11053447-B2 · Jul 6, 2021 · US
Process to remove olefins from light hydrocarbon stream by mercaptanization followed by MEROX removal of mercaptans from the separated stream
US-10968400-B2 · Apr 6, 2021 · US
Process to remove olefins from light hydrocarbon stream by mercaptanization followed by merox removal of mercaptans from the separated stream
US-2021032547-A1 · Feb 4, 2021 · US
Integrated mercaptan extraction and/or sweetening processes combined with thermal oxidation and flue gas treatment
US-10888818-B2 · Jan 12, 2021 · US
Method for selective extraction of surfactants from crude oil
US-10883055-B2 · Jan 5, 2021 · US
Basic ionic liquids as hydrochloric acid scavengers in refinery crude processing
US-10822547-B2 · Nov 3, 2020 · US
Controlled catalytic oxidation of MEROX process by-products in integrated refinery process
US-10807947-B2 · Oct 20, 2020 · US
Process for the regeneration of an alkaline solution utilized in a process for the extraction of sulphur-containing compounds comprising a washing step
US-10808182-B2 · Oct 20, 2020 · US
Process and apparatus for a settler and first stage water wash in a caustic free kerosene sweetening reactor
US-10774274-B2 · Sep 15, 2020 · US
Organic acid removal from liquid hydrocarbon product streams
US-2020239785-A1 · Jul 30, 2020 · US
Integrated mercaptan extraction and/or sweetening processes combined with thermal oxidation and flue gas treatment
US-2020222851-A1 · Jul 16, 2020 · US
Controlled catalytic oxidation of merox process by-products in integrated refinery process
US-2020181073-A1 · Jun 11, 2020 · US
Chemical process for sulfur reduction of hydrocarbons
US-2020109335-A1 · Apr 9, 2020 · US
Chemical process for sulfur reduction of hydrocarbons
US-10570344-B2 · Feb 25, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C10G53/12?
- CPC C10G53/12 is the Cooperative Patent Classification code for “including at least one alkaline treatment step.”
- How many patents are filed under CPC C10G53/12 (including at least one alkaline treatment step)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC C10G53/12 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).