Recovery of aliphatic hydrocarbons
US-12559686-B2 · Feb 24, 2026 · US
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Separation of organic compounds by selective or extractive crystallisation with the aid of auxiliary substances forming complex or molecular compounds, e.g. with ureum, thioureum or metal salts
Separation of organic compounds by selective or extractive crystallisation with the aid of auxiliary substances forming complex or molecular compounds, e.g. with ureum, thioureum or metal salts · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D2009/009 |
| Official title | {Separation of organic compounds by selective or extractive crystallisation with the aid of auxiliary substances forming complex or molecular compounds, e.g. with ureum, thioureum or metal salts} |
| Display label | Separation of organic compounds by selective or extractive crystallisation with the aid of auxiliary substances forming complex or molecular compounds, e.g. with ureum, thioureum or metal salts |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Recovery of aliphatic hydrocarbons
US-2022403264-A1 · Dec 22, 2022 · US
Crystalline forms of posaconazole intermediate and process for the preparation of amorphous posaconazole
US-10927102-B2 · Feb 23, 2021 · US
Method for producing cellulose particles using porous membrane
US-2021032415-A1 · Feb 4, 2021 · US
Method for preparing L-methionine crystals using crystallization technique
US-10870619-B2 · Dec 22, 2020 · US
Precipitation method and synthesis method of 2,6-diamino-3,5-dinitropyrazine-1-oxide
US-10836731-B2 · Nov 17, 2020 · US
Method for producing high-purity terephthalic acid
US-10683253-B2 · Jun 16, 2020 · US
Crystal of reduced glutathione
US-10640532-B2 · May 5, 2020 · US
Crystalline forms of posaconazole intermediate and process for the preparation of amorphous posaconazole
US-2020087289-A1 · Mar 19, 2020 · US
Precipitation method and synthesis method of 2,6-diamino-3,5-dinitropyrazine-1-oxide
US-2020010431-A1 · Jan 9, 2020 · US
Crystalline forms of posaconazole intermediate and process for the preparation of amorphous posaconazole
US-10457668-B2 · Oct 29, 2019 · US
Method for preparing l-methionine crystals using crystallization technique
US-2019315682-A1 · Oct 17, 2019 · US
Method for producing high-purity terephthalic acid
US-2019233361-A1 · Aug 1, 2019 · US
Crystalline forms of posaconazole intermediate and process for the preparation of amorphous posaconazole
US-2018319777-A1 · Nov 8, 2018 · US
Crystal of reduced glutathione
US-2018094025-A1 · Apr 5, 2018 · US