Apparatuses, systems, and methods for gas leak detection
US-2024377088-A1 · Nov 14, 2024 · US
using wet filtering
using wet filtering · 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 | F24F8/117 |
| Official title | using wet filtering |
| Display label | using wet filtering |
| Total patents | 64 |
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 | 5 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 7 |
| 2020 | 9 |
| 2021 | 7 |
| 2022 | 9 |
| 2023 | 9 |
| 2024 | 7 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatuses, systems, and methods for gas leak detection
US-12078368-B2 · Sep 3, 2024 · US
Wind-direction adjustable air purifier
US-12000621-B2 · Jun 4, 2024 · US
Hvac system air filter
US-2024139674-A1 · May 2, 2024 · US
Humidifying device
US-11920825-B2 · Mar 5, 2024 · US
Humidification and air cleaning apparatus
US-11815288-B2 · Nov 14, 2023 · US
Space cleaning device and space cleaning system using same
US-2023330296-A1 · Oct 19, 2023 · US
Multiple stage air purification device
US-2023083217-A1 · Mar 16, 2023 · US
Powerless humidification module for air cleaner capable of preventing leakage of water
US-11598541-B2 · Mar 7, 2023 · US
Air purifier
US-11592198-B2 · Feb 28, 2023 · US
Air flow vessel and spray ring air purification device
US-11573018-B2 · Feb 7, 2023 · US
Method using spray ring in an enclosed air flow for purification
US-11549705-B2 · Jan 10, 2023 · US
Humidification and air cleaning apparatus
US-11549701-B2 · Jan 10, 2023 · US
Air treatment device configured for cyclone flow and water contact
US-11543141-B2 · Jan 3, 2023 · US
Apparatuses, systems, and methods for gas leak detection
US-2022397297-A1 · Dec 15, 2022 · US
Cyclonic vessel air purification and humidity device
US-11493217-B2 · Nov 8, 2022 · US
Method for air treatment in a moving air flow vessel
US-11493218-B2 · Nov 8, 2022 · US
Humidifying device
US-2022307707-A1 · Sep 29, 2022 · US
Method and system for air filtration
US-2022176281-A1 · Jun 9, 2022 · US
Multifunctional circulation system enabling purification of outside air
US-11320158-B2 · May 3, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F8/117?
- CPC F24F8/117 is the Cooperative Patent Classification code for “using wet filtering.”
- How many patents are filed under CPC F24F8/117 (using wet filtering)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC F24F8/117 growing?
- Publication counts under this code: 7 in 2024 vs 2 in 2025 (latest complete years).