Refrigerant compositions and uses thereof
US-12503632-B2 · Dec 23, 2025 · US
Mixtures of hydrocarbons and oxygen-containing solvents
Mixtures of hydrocarbons and oxygen-containing solvents · 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 | C11D7/509 |
| Official title | {Mixtures of hydrocarbons and oxygen-containing solvents} |
| Display label | Mixtures of hydrocarbons and oxygen-containing solvents |
| Total patents | 28 |
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 | 1 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for cleaning semiconductor substrate, method for manufacturing processed semiconductor substrate, and releasing and dissolving composition
US-2025043216-A1 · Feb 6, 2025 · US
Azeotrope or azeotrope-like compositions of (z)-1-chloro-2,3,3-trifluoroprop-1-ene with ethanol or methanol and solvent applications thereof
US-2024209516-A1 · Jun 27, 2024 · US
Binary azeotrope and azeotrope-like compositions comprising perfluoroheptene
US-11767494-B2 · Sep 26, 2023 · US
Azeotropic compositions comprising dimethyl carbonate and perfluoroalkene ethers
US-11685879-B2 · Jun 27, 2023 · US
Compositions
US-2023073051-A1 · Mar 9, 2023 · US
Azeotropic composition containing 1,1,1,3,3,3-hexafluoro-2-methoxypropane
US-11530376-B2 · Dec 20, 2022 · US
Refrigerant compositions
US-11447674-B2 · Sep 20, 2022 · US
Quaternary azeotrope and azeotrope-like compositions for solvent and cleaning applications
US-2022089982-A1 · Mar 24, 2022 · US
Azeotropic compositions comprising dimethyl carbonate and perfluoroalkene ethers
US-2021340468-A1 · Nov 4, 2021 · US
Cleaning composition
US-11053462-B2 · Jul 6, 2021 · US
Binary azeotrope and azeotrope-like compositions comprising perfluoroheptene
US-2021139819-A1 · May 13, 2021 · US
Ternary and quaternary azeotrope and azeotrope-like compositions comprising perfluoroheptene
US-2021102146-A1 · Apr 8, 2021 · US
Azeotropic composition containing 1,1,1,3,3,3-hexafluoro-2-methoxypropane
US-2021079321-A1 · Mar 18, 2021 · US
Azeotropic composition containing 1,1,1,3,3,3-hexafluoro-2-methoxypropane
US-10836983-B2 · Nov 17, 2020 · US
Compositions
US-2020071585-A1 · Mar 5, 2020 · US
Azeotropic composition containing 1,1,1,3,3,3-hexafluoro-2-methoxypropane
US-2020024553-A1 · Jan 23, 2020 · US
2,3,3,3-tetrafluoropropene compositions having improved miscibility
US-10377935-B2 · Aug 13, 2019 · US
Cleaning composition
US-2019071622-A1 · Mar 7, 2019 · US
AZEOTROPIC AND AZEOTROPE-LIKE COMPOSITIONS OF Z-1233zd
US-2019070447-A1 · Mar 7, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C11D7/509?
- CPC C11D7/509 is the Cooperative Patent Classification code for “Mixtures of hydrocarbons and oxygen-containing solvents.”
- How many patents are filed under CPC C11D7/509 (Mixtures of hydrocarbons and oxygen-containing solvents)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC C11D7/509 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).