Structural color system based on supercritical microemulsion phase separation, preparation method therefor and use thereof
US-2026015790-A1 · Jan 15, 2026 · US
by changing the pressure
by changing the pressure · 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 | B01D17/044 |
| Official title | {by changing the pressure} |
| Display label | by changing the pressure |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for enhanced inorganic contaminant removal from hydrocarbon feedstock
US-2025011661-A1 · Jan 9, 2025 · US
Systems and methods for enhanced inorganic contaminant removal from hydrocarbon feedstock
US-12098330-B2 · Sep 24, 2024 · US
Systems and methods for separating water and removing solids from pre-treated and unfiltered feedstock
US-2023383195-A1 · Nov 30, 2023 · US
Systems and methods for enhanced inorganic contaminant removal from hydrocarbon feedstock
US-2023340340-A1 · Oct 26, 2023 · US
Systems and methods for enhanced inorganic contaminant removal from hydrocarbon feedstock
US-11725151-B2 · Aug 15, 2023 · US
Systems and methods for separating water and removing solids from pre-treated and unfiltered feedstock
US-11702601-B2 · Jul 18, 2023 · US
Systems and methods for enhanced inorganic contaminant removal from hydrocarbon feedstock
US-2022275290-A1 · Sep 1, 2022 · US
Systems and processes for hydrocarbon upgrading
US-2022220396-A1 · Jul 14, 2022 · US
Systems and methods for enhanced inorganic contaminant removal from hydrocarbon feedstock
US-2022195317-A1 · Jun 23, 2022 · US
Systems and methods for enhanced inorganic contaminant removal from hydrocarbon feedstock
US-11352570-B1 · Jun 7, 2022 · US
Systems and methods for separating water and removing solids from pre-treated and unfiltered feedstock
US-2022135449-A1 · May 5, 2022 · US
Systems and methods for enhanced inorganic contaminant removal from hydrocarbon feedstock
US-11306260-B1 · Apr 19, 2022 · US
Device and method for separating two immiscible liquids by means of a bicontinuous phase
US-2021260499-A1 · Aug 26, 2021 · US
Upgrading and extraction of heavy oil by supercritical water
US-2021122985-A1 · Apr 29, 2021 · US
Magnetic bearing apparatus for separting solids, liquids and gases having different specific gravities with enhanced solids separation means
US-10778064-B1 · Sep 15, 2020 · US
Acoustophoretic separation technology using multi-dimensional standing waves
US-10724029-B2 · Jul 28, 2020 · US
Process for component separation utilizing miscibility depression near a freezing point
US-10537843-B2 · Jan 21, 2020 · US
Transducer and reflector configurations for an acoustophoretic device
US-10322949-B2 · Jun 18, 2019 · US
System for generating high concentration factors for low cell density suspensions
US-10308928-B2 · Jun 4, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D17/044?
- CPC B01D17/044 is the Cooperative Patent Classification code for “by changing the pressure.”
- How many patents are filed under CPC B01D17/044 (by changing the pressure)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC B01D17/044 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).