Allergen reduction device
US-12376717-B2 · Aug 5, 2025 · US
for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air (spraying or atomising in general B05)
for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air (spraying or atomising in general B05) · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A47L7/04 |
| Official title | for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air (spraying or atomising in general B05) |
| Display label | for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air (spraying or atomising in general B05) |
| Total patents | 64 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 8 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 10 |
| 2024 | 10 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air agitator nozzle system
US-2025235058-A1 · Jul 24, 2025 · US
Vacuum blower
US-12146498-B2 · Nov 19, 2024 · US
Mobile object and method for preventing foreign matter from adhering to mobile object
US-2024342773-A1 · Oct 17, 2024 · US
Vacuum blower
US-2024254995-A1 · Aug 1, 2024 · US
Cleaning device having vacuum cleaner and docking station
US-11937764-B2 · Mar 26, 2024 · US
Surface cleaning device with odor management
US-2024090718-A1 · Mar 21, 2024 · US
Cleaning of pet areas by autonomous cleaning robots
US-11930992-B2 · Mar 19, 2024 · US
Air outlet system for a portable dry vacuum cleaner
US-11925302-B2 · Mar 12, 2024 · US
Cleaner system
US-2024000278-A1 · Jan 4, 2024 · US
Ground Cleaning Device
US-2024000277-A1 · Jan 4, 2024 · US
Surface cleaning device with odor management
US-11857138-B2 · Jan 2, 2024 · US
Floor and air cleaning systems and related methods
US-11793379-B2 · Oct 24, 2023 · US
Vacuum cleaner odor diffusion system
US-2023329502-A1 · Oct 19, 2023 · US
Robotic cleaner and methods of operating the same
US-2023320550-A1 · Oct 12, 2023 · US
Vacuum cleaner
US-11751742-B2 · Sep 12, 2023 · US
Moveable ionization unit for cleaning air in a room with a support structure
US-2023118225-A1 · Apr 20, 2023 · US
Air purifier, air purifying system, and method of controlling air purifying system
US-11623173-B2 · Apr 11, 2023 · US
Surface cleaning device with odor management
US-2023038659-A1 · Feb 9, 2023 · US
Surface cleaning device with odor management
US-2023043567-A1 · Feb 9, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A47L7/04?
- CPC A47L7/04 is the Cooperative Patent Classification code for “for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air (spraying or atomising in general B05).”
- How many patents are filed under CPC A47L7/04 (for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air (spraying or atomising in general B05))?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC A47L7/04 growing?
- Publication counts under this code: 10 in 2024 vs 4 in 2025 (latest complete years).