Aerosol ionization device and air purifier employing same
US-2026091396-A1 · Apr 2, 2026 · US
Controlling flow of gases or vapour
Controlling flow of gases or vapour · 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 | B03C3/36 |
| Official title | Controlling flow of gases or vapour |
| Display label | Controlling flow of gases or vapour |
| Total patents | 33 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 2 |
| 2022 | 2 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric precipitator, and home appliance comprising same
US-2025177997-A1 · Jun 5, 2025 · US
Electrostatic particle collector
US-12194475-B2 · Jan 14, 2025 · US
Vehicle having a device for capturing dust particles
US-2024261797-A1 · Aug 8, 2024 · US
Air conditioner and electrostatic precipitator
US-2024085039-A1 · Mar 14, 2024 · US
Electrostatic particle collector
US-2024024897-A1 · Jan 25, 2024 · US
Trap device for powder coating apparatus
US-11534772-B2 · Dec 27, 2022 · US
Electrostatic particle filtering
US-11413628-B2 · Aug 16, 2022 · US
Trap device for powder coating apparatus
US-2021162428-A1 · Jun 3, 2021 · US
Electronic apparatus capable of air pollution reduction
US-11015823-B2 · May 25, 2021 · US
Curved classifiers and classification methods
US-10845288-B2 · Nov 24, 2020 · US
Apparatus for treating gas
US-10814336-B2 · Oct 27, 2020 · US
Air cleaning systems and methods
US-10807102-B2 · Oct 20, 2020 · US
Apparatus and system for classifying particles
US-10591397-B2 · Mar 17, 2020 · US
Scroll type electrostatic precipitator and air conditioning apparatus having the same
US-10556241-B2 · Feb 11, 2020 · US
Electrostatic particle filtering
US-2019381516-A1 · Dec 19, 2019 · US
Electronic apparatus capable of air pollution reduction
US-2019178510-A1 · Jun 13, 2019 · US
Smart control for airborne particle collection
US-10265703-B2 · Apr 23, 2019 · US
Curved classifiers and classification methods
US-2019056300-A1 · Feb 21, 2019 · US
Electrohydrodynamic spraying
US-10207276-B2 · Feb 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B03C3/36?
- CPC B03C3/36 is the Cooperative Patent Classification code for “Controlling flow of gases or vapour.”
- How many patents are filed under CPC B03C3/36 (Controlling flow of gases or vapour)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC B03C3/36 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).