Filtration of HVAC system for improved indoor air quality
US-12595919-B2 · Apr 7, 2026 · US
Supplying highly filtered air to a room or to a limited area within a room
Supplying highly filtered air to a room or to a limited area within a room · 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 | F24F2003/008 |
| Official title | {Supplying highly filtered air to a room or to a limited area within a room} |
| Display label | Supplying highly filtered air to a room or to a limited area within a room |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2021 | 8 |
| 2022 | 3 |
| 2023 | 8 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air management apparatus or device
US-12366367-B2 · Jul 22, 2025 · US
System and method for heating and cooling
US-2025180228-A1 · Jun 5, 2025 · US
System and method for heating and cooling
US-12215886-B2 · Feb 4, 2025 · US
Air management apparatus or device
US-12196431-B2 · Jan 14, 2025 · US
System and method for heating and cooling
US-2024117976-A1 · Apr 11, 2024 · US
Air management apparatus or device
US-11906176-B2 · Feb 20, 2024 · US
Air cleaner
US-11892194-B2 · Feb 6, 2024 · US
System and method for heating and cooling
US-11859861-B2 · Jan 2, 2024 · US
Air management apparatus or device
US-11852360-B2 · Dec 26, 2023 · US
Filtration of hvac system for improved indoor air quality
US-2023358420-A1 · Nov 9, 2023 · US
Air management apparatus or device
US-11796190-B2 · Oct 24, 2023 · US
Air management apparatus or device
US-11774113-B2 · Oct 3, 2023 · US
System and method for heating and cooling
US-2023175711-A1 · Jun 8, 2023 · US
System and method for heating and cooling
US-11578880-B2 · Feb 14, 2023 · US
Air management apparatus and method thereof
US-11566796-B2 · Jan 31, 2023 · US
Displacement ventilation systems and methods
US-2023003414-A1 · Jan 5, 2023 · US
System and Method for Heating and Cooling
US-2022235949-A1 · Jul 28, 2022 · US
System and method for heating and cooling
US-11313568-B2 · Apr 26, 2022 · US
Air cleaner
US-2022010991-A1 · Jan 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F2003/008?
- CPC F24F2003/008 is the Cooperative Patent Classification code for “Supplying highly filtered air to a room or to a limited area within a room.”
- How many patents are filed under CPC F24F2003/008 (Supplying highly filtered air to a room or to a limited area within a room)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC F24F2003/008 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).