Duct wall surface structure
US-10488040-B2 · Nov 26, 2019 · US
by reversal of direction of flow
by reversal of direction of flow · 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 | B01D45/06 |
| Official title | by reversal of direction of flow |
| Display label | by reversal of direction of flow |
| Total patents | 185 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 11 |
| 2017 | 10 |
| 2018 | 18 |
| 2019 | 25 |
| 2020 | 27 |
| 2021 | 14 |
| 2022 | 20 |
| 2023 | 15 |
| 2024 | 18 |
| 2025 | 18 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluid catalytic cracking process and apparatus for maximizing light olefin yield and other applications
US-2019338199-A1 · Nov 7, 2019 · US
Passive particle separation system
US-2019329899-A1 · Oct 31, 2019 · US
Dust collector and electronic system capable of automatically removing dust
US-2019275452-A1 · Sep 12, 2019 · US
Exhaust unit
US-10406473-B2 · Sep 10, 2019 · US
Transmission pressure controlled vent system
US-2019271384-A1 · Sep 5, 2019 · US
Particle separator
US-10393021-B2 · Aug 27, 2019 · US
Particle separation system
US-10369503-B2 · Aug 6, 2019 · US
Device for the separation of oil droplets and/or oil mist
US-10364714-B2 · Jul 30, 2019 · US
Separating device
US-2019111369-A1 · Apr 18, 2019 · US
Inertial particle separator for engine inlet
US-10245540-B2 · Apr 2, 2019 · US
Systems and methods for particle separator in a gas turbine engine
US-2019003388-A1 · Jan 3, 2019 · US
Fuel cell vehicle
US-2018358637-A1 · Dec 13, 2018 · US
Analysis device
US-2018348153-A1 · Dec 6, 2018 · US
Grease filter, manufacturing method thereof and cooking device having the same
US-10137395-B2 · Nov 27, 2018 · US
Gasification quench system
US-10131857-B2 · Nov 20, 2018 · US
Multi-channel particle separator
US-10100734-B2 · Oct 16, 2018 · US
Separation device for liquids
US-10086321-B2 · Oct 2, 2018 · US
Multistage separation system
US-10080986-B2 · Sep 25, 2018 · US
Paint mist separating device
US-10081029-B2 · Sep 25, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D45/06?
- CPC B01D45/06 is the Cooperative Patent Classification code for “by reversal of direction of flow.”
- How many patents are filed under CPC B01D45/06 (by reversal of direction of flow)?
- Our database includes 185 publications tagged with this CPC code.
- Is patent activity under CPC B01D45/06 growing?
- Publication counts under this code: 18 in 2024 vs 18 in 2025 (latest complete years).