Air Purifier
US-2022333796-A1 · Oct 20, 2022 · US
including an air filter
including an air filter · 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 | F24F13/085 |
| Official title | {including an air filter} |
| Display label | including an air filter |
| Total patents | 90 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 16 |
| 2021 | 12 |
| 2022 | 9 |
| 2023 | 17 |
| 2024 | 6 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter assembly
US-11344834-B2 · May 31, 2022 · US
Air blowing device and indoor air conveying system using same
US-11300316-B2 · Apr 12, 2022 · US
Return air grille air purifier
US-2022090817-A1 · Mar 24, 2022 · US
Ductwork frame assembly
US-11243008-B2 · Feb 8, 2022 · US
Indoor system and indoor unit of air-conditioning apparatus
US-11236927-B2 · Feb 1, 2022 · US
Air conditioner
US-11226131-B2 · Jan 18, 2022 · US
Air cleaner
US-2022008855-A1 · Jan 13, 2022 · US
Air cleaner
US-2022011011-A1 · Jan 13, 2022 · US
Controlled low humidity storage device and methods
US-11149969-B2 · Oct 19, 2021 · US
Air conditioner
US-2021310693-A1 · Oct 7, 2021 · US
Air conditioner
US-11118792-B2 · Sep 14, 2021 · US
Air conditioner
US-11079135-B2 · Aug 3, 2021 · US
Air management apparatus or device
US-2021172624-A1 · Jun 10, 2021 · US
Air management apparatus or device
US-2021172621-A1 · Jun 10, 2021 · US
Air management apparatus or device
US-2021172615-A1 · Jun 10, 2021 · US
Air management apparatus or device
US-2021172616-A1 · Jun 10, 2021 · US
Air management apparatus or device
US-2021172617-A1 · Jun 10, 2021 · US
Air management apparatus or device
US-2021172619-A1 · Jun 10, 2021 · US
Air management apparatus or device
US-2021172620-A1 · Jun 10, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F13/085?
- CPC F24F13/085 is the Cooperative Patent Classification code for “including an air filter.”
- How many patents are filed under CPC F24F13/085 (including an air filter)?
- Our database includes 90 publications tagged with this CPC code.
- Is patent activity under CPC F24F13/085 growing?
- Publication counts under this code: 6 in 2024 vs 6 in 2025 (latest complete years).