Processes and cataylsts for the selective hydrogenation of compounds having carbonyl carbon atoms
US-2024368100-A1 · Nov 7, 2024 · US
the gas being used for removing vapours, e.g. transport gas
the gas being used for removing vapours, e.g. transport gas · 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 | B01D3/346 |
| Official title | {the gas being used for removing vapours, e.g. transport gas} |
| Display label | the gas being used for removing vapours, e.g. transport gas |
| Total patents | 214 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 13 |
| 2017 | 16 |
| 2018 | 20 |
| 2019 | 33 |
| 2020 | 26 |
| 2021 | 21 |
| 2022 | 16 |
| 2023 | 14 |
| 2024 | 25 |
| 2025 | 20 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Humidification-dehumidification system for purifying aqueous fluids
US-10500523-B1 · Dec 10, 2019 · US
Energy efficient humidification-dehumidification desalination system
US-10456780-B1 · Oct 29, 2019 · US
Process for removing water and/or oxygen from organic liquid
US-10286334-B2 · May 14, 2019 · US
Hybridization of humidification-dehumidification and pressure-retarded osmosis
US-10258926-B2 · Apr 16, 2019 · US
Deodorizing apparatus and deodorizing method
US-2018345210-A1 · Dec 6, 2018 · US
Systems including an apparatus comprising both a humidification region and a dehumidification region with heat recovery and/or intermediate injection
US-10143936-B2 · Dec 4, 2018 · US
Selective scaling in desalination water treatment systems and associated methods
US-10144654-B2 · Dec 4, 2018 · US
Systems and methods for continuous contacting tunnel desalination
US-10138140-B2 · Nov 27, 2018 · US
Solvent recovery apparatus and solvent recovery method
US-2018319949-A1 · Nov 8, 2018 · US
Materials and methods for producing alkenes and derivatives thereof
US-2018297911-A1 · Oct 18, 2018 · US
High purity tungsten hexachloride and method for making same
US-10100406-B2 · Oct 16, 2018 · US
Process and plant for treatment of secondary components obtained in acrolein and/or (meth)acrylic acid production
US-10093551-B2 · Oct 9, 2018 · US
Process and apparatus for recovering light hydrocarbons by sponge absorption
US-2018280827-A1 · Oct 4, 2018 · US
Device For Converting A Liquid Into Vapour And Associated Method For Regulating A Heating Power
US-2018264374-A1 · Sep 20, 2018 · US
Packed column
US-2018257001-A1 · Sep 13, 2018 · US
Production of multivalent ion-rich streams using humidification-dehumidification systems
US-2018236372-A1 · Aug 23, 2018 · US
Duplex stainless steel and use thereof
US-2018195158-A1 · Jul 12, 2018 · US
Method for assisting thermally-induced changes
US-2018154279-A1 · Jun 7, 2018 · US
Alkali metal salt of fluorosulfonyl imide, and production method therefor
US-9985317-B2 · May 29, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D3/346?
- CPC B01D3/346 is the Cooperative Patent Classification code for “the gas being used for removing vapours, e.g. transport gas.”
- How many patents are filed under CPC B01D3/346 (the gas being used for removing vapours, e.g. transport gas)?
- Our database includes 214 publications tagged with this CPC code.
- Is patent activity under CPC B01D3/346 growing?
- Publication counts under this code: 25 in 2024 vs 20 in 2025 (latest complete years).