Mass transfer tray, use thereof, column having the same, and thermal separation process
US-2025186902-A1 · Jun 12, 2025 · US
Bubble caps
Bubble caps · 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 | B01D3/205 |
| Official title | {Bubble caps} |
| Display label | Bubble caps |
| Total patents | 26 |
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 | 4 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 4 |
| 2021 | 3 |
| 2022 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid distributor
US-2025065244-A1 · Feb 27, 2025 · US
Method and system for orifice control of valve pressure drop
US-12059640-B2 · Aug 13, 2024 · US
Multi-Stage Bubble-Column Vapor Mixture Condensation
US-2024042345-A1 · Feb 8, 2024 · US
Hybrid tray for introducing a low CO2 feed stream into a distillation tower
US-11306267-B2 · Apr 19, 2022 · US
Method and system for orifice control of valve pressure drop
US-2021299589-A1 · Sep 30, 2021 · US
Multi-Stage Bubble-Column Vapor Mixture Condensation
US-2021228998-A1 · Jul 29, 2021 · US
Multi-stage bubble-column vapor mixture condensation
US-11007455-B2 · May 18, 2021 · US
Column for thermal treatment of fluid mixtures
US-10493376-B2 · Dec 3, 2019 · US
Chimney tray for a column for thermal treatment of fluid mixtures
US-10471369-B2 · Nov 12, 2019 · US
Semi-continuous treatment of produced water with boiler flue gas
US-10464826-B2 · Nov 5, 2019 · US
Multi-Stage Bubble-Column Vapor Mixture Condensation
US-2019282922-A1 · Sep 19, 2019 · US
Accumulation and melt tray assembly for a distillation tower
US-10006700-B2 · Jun 26, 2018 · US
Hybrid contact tray for a mass transfer column
US-9987566-B2 · Jun 5, 2018 · US
Chimney tray for a column for thermal treatment of fluid mixtures
US-2017173491-A1 · Jun 22, 2017 · US
Column for thermal treatment of fluid mixtures
US-2017173492-A1 · Jun 22, 2017 · US
Semi-continuous treatment of produced water with boiler flue gas
US-2017057835-A1 · Mar 2, 2017 · US
Multi-Stage Bubble-Column Vapor Mixture Condenser and HDH System
US-2016271518-A1 · Sep 22, 2016 · US
Multi-stage bubble-column vapor mixture condenser
US-9403104-B2 · Aug 2, 2016 · US
Tray for dispensing a gas and a liquid, reactor provided with such a tray, and use of said tray
US-9399229-B2 · Jul 26, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D3/205?
- CPC B01D3/205 is the Cooperative Patent Classification code for “Bubble caps.”
- How many patents are filed under CPC B01D3/205 (Bubble caps)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC B01D3/205 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).