Reflux arrangement for distillation columns
US-12247007-B2 · Mar 11, 2025 · US
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Head- and feed stream
Head- and feed stream · 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 | B01D3/4233 |
| Official title | {Head- and feed stream} |
| Display label | Head- and feed stream |
| Total patents | 10 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Reflux arrangement for distillation columns
US-2024067590-A1 · Feb 29, 2024 · US
Systems for controlling fractionation using dynamic competing economic objectives
US-11766625-B2 · Sep 26, 2023 · US
Controlling fractionation using dynamic competing economic objectives
US-11707698-B2 · Jul 25, 2023 · US
Controlling fractionation using dynamic competing economic objectives
US-2023193141-A1 · Jun 22, 2023 · US
Systems for controlling fractionation using dynamic competing economic objectives
US-2023191278-A1 · Jun 22, 2023 · US
Method of column control
US-11225444-B2 · Jan 18, 2022 · US
Method of column control
US-2021130265-A1 · May 6, 2021 · US
Process and apparatus for controlling the split of liquid reflux in a divided wall column
US-10792583-B2 · Oct 6, 2020 · US
Process and apparatus for controlling the split of liquid reflux in a divided wall column
US-2019299116-A1 · Oct 3, 2019 · US