Method for enriching burnt-sweet aroma note in yunnan flue-cured tobacco and aerosol-forming material
US-2026053181-A1 · Feb 26, 2026 · US
Recovery by solvent extraction
Recovery by solvent extraction · 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 | C11B9/025 |
| Official title | {Recovery by solvent extraction} |
| Display label | Recovery by solvent extraction |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Perfume concrete and absolute which are obtained by alkane solvent extraction from solid natural substances
US-2025368918-A1 · Dec 4, 2025 · US
New low sulfur terpene mix recovery from wood processing
US-2025290009-A1 · Sep 18, 2025 · US
Perfume concrete and absolute which are obtained by ketone or dioxolane-type solvent extraction from solid natural substances
US-2025188383-A1 · Jun 12, 2025 · US
Perfume concrete and absolute which are obtained by organic (poly)ol solvent extraction from solid natural substances
US-2025136891-A1 · May 1, 2025 · US
Method for increasing viridiflorol content in tissues
US-12018264-B2 · Jun 25, 2024 · US
Process for preparing absolutes
US-2024157271-A1 · May 16, 2024 · US
Oil extract from Gardenia jasminoides flowers and cosmetic compositions comprising it
US-11872303-B2 · Jan 16, 2024 · US
Fragrance concrete and absolute obtained by extraction of heterocyclic solvent from solid natural materials
US-2023392095-A1 · Dec 7, 2023 · US
Eutectic extraction of solids
US-2022305401-A1 · Sep 29, 2022 · US
Oil extract from gardenia jasminoides flowers and cosmetic compositions comprising it
US-2022249357-A1 · Aug 11, 2022 · US
Method for increasing viridiflorol content in tissues
US-2021403827-A1 · Dec 30, 2021 · US
Method and test kit for recreation of an odor
US-11078442-B2 · Aug 3, 2021 · US
Fragrance compositions
US-10982173-B2 · Apr 20, 2021 · US
Membrane-based processes for selectively fractionating essential oils
US-10934501-B2 · Mar 2, 2021 · US
Method and test kit for recreation of an odor
US-2020157464-A1 · May 21, 2020 · US
Compositions and uses of cis-1,1,1,4,4,4-hexafluoro-2-butene
US-2020017740-A1 · Jan 16, 2020 · US
Fragrance compositions
US-2019218476-A1 · Jul 18, 2019 · US
Membrane-based processes for selectively fractionating essential oils
US-2019106654-A1 · Apr 11, 2019 · US
Membrane-based processes for selectively fractionating essential oils
US-10202562-B2 · Feb 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C11B9/025?
- CPC C11B9/025 is the Cooperative Patent Classification code for “Recovery by solvent extraction.”
- How many patents are filed under CPC C11B9/025 (Recovery by solvent extraction)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC C11B9/025 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).