Air quality indicator
US-9833734-B2 · Dec 5, 2017 · US
by electrical means, e.g. by applying electrostatic fields or high voltages
by electrical means, e.g. by applying electrostatic fields or high voltages · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F24F8/192 |
| Official title | by electrical means, e.g. by applying electrostatic fields or high voltages |
| Display label | by electrical means, e.g. by applying electrostatic fields or high voltages |
| Total patents | 309 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 28 |
| 2017 | 35 |
| 2018 | 29 |
| 2019 | 29 |
| 2020 | 31 |
| 2021 | 22 |
| 2022 | 27 |
| 2023 | 31 |
| 2024 | 31 |
| 2025 | 18 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air cleaner
US-9827523-B2 · Nov 28, 2017 · US
Photocatalytic module for automobile air conditioner and automobile air conditioner having the same
US-2017334267-A1 · Nov 23, 2017 · US
Bio sensor and air cleaner having same
US-9803877-B2 · Oct 31, 2017 · US
Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agents
US-2017189914-A1 · Jul 6, 2017 · US
Plasma electrode device and method for manufacturing the same
US-9646806-B2 · May 9, 2017 · US
Air freshener
US-2017120181-A1 · May 4, 2017 · US
Regenerative air purification system and method
US-9597627-B2 · Mar 21, 2017 · US
Humidifying apparatus
US-9599356-B2 · Mar 21, 2017 · US
Air purifier for bringing gas into contact with plasma-treated liquid
US-2017021049-A1 · Jan 26, 2017 · US
Forced evaporative humidifier using nano-vapor
US-9518749-B2 · Dec 13, 2016 · US
Electric dust collection device and air conditioner using the same
US-2016332169-A1 · Nov 17, 2016 · US
HVAC Home Air Filter
US-2016317963-A1 · Nov 3, 2016 · US
Air quality indicator
US-2016310884-A1 · Oct 27, 2016 · US
Air purifying apparatus having shuntable air duct
US-2016303272-A1 · Oct 20, 2016 · US
Air purification device
US-9468937-B2 · Oct 18, 2016 · US
Corona discharge device and air-conditioning apparatus
US-9457118-B2 · Oct 4, 2016 · US
HVAC System Air Filter
US-2016279562-A1 · Sep 29, 2016 · US
Filter device for air conditioning
US-2016282000-A1 · Sep 29, 2016 · US
Plasma generating apparatus
US-9452236-B2 · Sep 27, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F8/192?
- CPC F24F8/192 is the Cooperative Patent Classification code for “by electrical means, e.g. by applying electrostatic fields or high voltages.”
- How many patents are filed under CPC F24F8/192 (by electrical means, e.g. by applying electrostatic fields or high voltages)?
- Our database includes 309 publications tagged with this CPC code.
- Is patent activity under CPC F24F8/192 growing?
- Publication counts under this code: 31 in 2024 vs 18 in 2025 (latest complete years).