System and method for extracting and separating botanical oils without the use of solvents
US-2024335764-A1 · Oct 10, 2024 · US
Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames
Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames · 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 | B03C3/38 |
| Official title | Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames |
| Display label | Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames |
| Total patents | 174 |
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 | 7 |
| 2017 | 13 |
| 2018 | 9 |
| 2019 | 14 |
| 2020 | 16 |
| 2021 | 11 |
| 2022 | 23 |
| 2023 | 20 |
| 2024 | 28 |
| 2025 | 22 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Particle sensor and sensing method
US-10859485-B2 · Dec 8, 2020 · US
Electrification device and electrical dust collecting apparatus including the same
US-2020230611-A1 · Jul 23, 2020 · US
Electrification device and electrical dust collecting apparatus including the same
US-2020206670-A1 · Jul 2, 2020 · US
Electrostatic charging air cleaning device
US-2020200408-A1 · Jun 25, 2020 · US
Device for collecting particles contained in an aerosol, comprising electrometres to determine nanoparticle concentration and particle size
US-10675639-B2 · Jun 9, 2020 · US
Fan device
US-2020047190-A1 · Feb 13, 2020 · US
Electrification apparatus for electric dust collection and air conditioner for vehicle including same
US-2020023378-A1 · Jan 23, 2020 · US
Solvent separation method and solvent separation apparatus
US-10478828-B2 · Nov 19, 2019 · US
Pulse firing pattern for a transformer of an electrostatic precipitator and electrostatic precipitator
US-2019270095-A1 · Sep 5, 2019 · US
Electrostatic precipitation device for removing particles in explosive gases
US-10399091-B2 · Sep 3, 2019 · US
Solvent separation method and solvent separation apparatus
US-10376831-B2 · Aug 13, 2019 · US
Charging apparatus and precipitator
US-2019193089-A1 · Jun 27, 2019 · US
Ion generation device
US-2019192722-A1 · Jun 27, 2019 · US
Air conditioning apparatus
US-10328373-B2 · Jun 25, 2019 · US
Electronic apparatus capable of air pollution reduction
US-2019178510-A1 · Jun 13, 2019 · US
Ion generation apparatus and electrical equipment
US-10320160-B2 · Jun 11, 2019 · US
Portable electronic device with a smart air purifier
US-10272171-B2 · Apr 30, 2019 · US
Smart control for airborne particle collection
US-10265703-B2 · Apr 23, 2019 · US
Ion air supply module needle net layout method and ion air supply module
US-2019109437-A1 · Apr 11, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B03C3/38?
- CPC B03C3/38 is the Cooperative Patent Classification code for “Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames.”
- How many patents are filed under CPC B03C3/38 (Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames)?
- Our database includes 174 publications tagged with this CPC code.
- Is patent activity under CPC B03C3/38 growing?
- Publication counts under this code: 28 in 2024 vs 22 in 2025 (latest complete years).