Air cleaner
US-9827523-B2 · Nov 28, 2017 · US
Mechanical Engineering
Mechanical Engineering · 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 | F24F3/1603 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 328 |
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 | 26 |
| 2016 | 29 |
| 2017 | 38 |
| 2018 | 43 |
| 2019 | 64 |
| 2020 | 93 |
| 2021 | 34 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air cleaner and method for controlling an air cleaner
US-9821262-B2 · Nov 21, 2017 · US
Filtration Device for Air Purification Appliance
US-2017296967-A1 · Oct 19, 2017 · US
Air purifier
US-9713783-B2 · Jul 25, 2017 · US
Air conditioner having air purifying module
US-2017023265-A1 · Jan 26, 2017 · US
Electronic Vapor And Analysis With HVAC Integration
US-2016363332-A1 · Dec 15, 2016 · US
Air conditioning apparatus and method of displaying dust concentration using the same
US-2016356519-A1 · Dec 8, 2016 · US
Humidifier
US-9506664-B2 · Nov 29, 2016 · US
Air filtration media for air purification
US-9498555-B2 · Nov 22, 2016 · US
Air quality indicator
US-2016310884-A1 · Oct 27, 2016 · US
Filter assembly and filtering system having the same
US-9474995-B2 · Oct 25, 2016 · US
Modular, high-throughput air treatment system
US-2016303503-A1 · Oct 20, 2016 · US
Air purifying apparatus having shuntable air duct
US-2016303272-A1 · Oct 20, 2016 · US
Air conditioner having air purifying module
US-9468699-B2 · Oct 18, 2016 · US
Corona discharge device and air-conditioning apparatus
US-9457118-B2 · Oct 4, 2016 · US
Cleaning device and control method therefor
US-2016278593-A1 · Sep 29, 2016 · US
Methods and systems for managing air quality and energy use in air-conditioning systems
US-2016282001-A1 · Sep 29, 2016 · US
Filter device for air conditioning
US-2016282000-A1 · Sep 29, 2016 · US
Air filtration and handling for nuclear reactor habitability area
US-9435552-B2 · Sep 6, 2016 · US
Air purification system and method using an ultrasonic wave
US-9403114-B2 · Aug 2, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F3/1603?
- CPC F24F3/1603 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F24F3/1603 (Mechanical Engineering)?
- Our database includes 328 publications tagged with this CPC code.
- Is patent activity under CPC F24F3/1603 growing?
- Publication counts under this code: 34 in 2021 vs 1 in 2022 (latest complete years).