Refinery apparatus
US-2026084077-A1 · Mar 26, 2026 · US
Feed stream
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 | B01D3/4294 |
| Official title | {Feed stream} |
| Display label | Feed stream |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 8 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 6 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems, analyzers, controllers, and associated methods to enhance fluid separation for distillation operations
US-2026054194-A1 · Feb 26, 2026 · US
Systems, analyzers, controllers, and associated methods to enhance fluid separation for distillation operations
US-2025367572-A1 · Dec 4, 2025 · US
Energy-efficient distillation process with variation of inflow
US-2025171386-A1 · May 29, 2025 · US
Reflux arrangement for distillation columns
US-12247007-B2 · Mar 11, 2025 · US
Method to mitigate fouling in a hydrocarbon plant
US-12195684-B2 · Jan 14, 2025 · US
Reflux arrangement for distillation columns
US-2024067590-A1 · Feb 29, 2024 · US
Process for separating a component mixture and separation apparatus
US-11781079-B2 · Oct 10, 2023 · US
Systems for controlling fractionation using dynamic competing economic objectives
US-11766625-B2 · Sep 26, 2023 · US
Method to detect tube leakage in shell and tube thermosiphon reboilers
US-11754338-B2 · Sep 12, 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 to detect tube leakage in shell and tube thermosiphon reboilers
US-2022290920-A1 · Sep 15, 2022 · US
Method to mitigate fouling in a hydrocarbon plant
US-2022186129-A1 · Jun 16, 2022 · US
Method for controlling a rectification column
US-11235260-B2 · Feb 1, 2022 · US
Method for separating and purifying mixture having small difference in boiling points
US-11065556-B2 · Jul 20, 2021 · US
Process for separating a component mixture and separation apparatus
US-2021139797-A1 · May 13, 2021 · US
Method and apparatus for producing acetic acid
US-10894759-B2 · Jan 19, 2021 · US
Folded fractionation column and process
US-10792585-B2 · Oct 6, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D3/4294?
- CPC B01D3/4294 is the Cooperative Patent Classification code for “Feed stream.”
- How many patents are filed under CPC B01D3/4294 (Feed stream)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC B01D3/4294 growing?
- Publication counts under this code: 1 in 2024 vs 4 in 2025 (latest complete years).