Smart vent system for localized air quality control
US-12571558-B2 · Mar 10, 2026 · US
by closing air passages
by closing air passages · 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 | F24F11/35 |
| Official title | by closing air passages |
| Display label | by closing air passages |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 7 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Actuator for a damper and method thereof
US-12480681-B2 · Nov 25, 2025 · US
Systems and methods for energy savings in buildings
US-2025341327-A1 · Nov 6, 2025 · US
Systems and methods for energy savings in buildings
US-12392517-B2 · Aug 19, 2025 · US
Thermoelectric tripping device and coupling arrangement thereof
US-12370395-B2 · Jul 29, 2025 · US
Ember and flame resistant resettable automatic soffit vent
US-2025067055-A1 · Feb 27, 2025 · US
Smart vent system for localized air quality control
US-2025043983-A1 · Feb 6, 2025 · US
Ember and flame resistant resettable automatic soffit vent
US-12104384-B2 · Oct 1, 2024 · US
System and method for communication of damper position of a safety damper
US-2024167709-A1 · May 23, 2024 · US
Actuator for a damper and method thereof
US-2024125506-A1 · Apr 18, 2024 · US
Ember and flame resistant resettable automatic soffit vent
US-11866943-B2 · Jan 9, 2024 · US
Ember and flame resistant resettable automatic soffit vent
US-2024003135-A1 · Jan 4, 2024 · US
System and method for access control using differential air pressure
US-11767997-B2 · Sep 26, 2023 · US
Damper assembly of a heating, ventilation, and/or air conditioning (HVAC) system
US-11754312-B2 · Sep 12, 2023 · US
Smart vent system for localized air quality control
US-2023094692-A1 · Mar 30, 2023 · US
Ember and flame resistant resettable automatic soffit vent
US-2023073277-A1 · Mar 9, 2023 · US
System and method for access control using differential air pressure
US-2022404046-A1 · Dec 22, 2022 · US
Damper assembly of a heating, ventilation, and/or air conditioning (hvac) system
US-2022349615-A1 · Nov 3, 2022 · US
Ember and flame resistant resettable automatic soffit vent
US-11434641-B2 · Sep 6, 2022 · US
System and method for access control using differential air pressure
US-11435098-B2 · Sep 6, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F11/35?
- CPC F24F11/35 is the Cooperative Patent Classification code for “by closing air passages.”
- How many patents are filed under CPC F24F11/35 (by closing air passages)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC F24F11/35 growing?
- Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).