Air conditioning apparatus and method of controlling indoor pressure using same
US-12566009-B2 · Mar 3, 2026 · US
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to create overpressure in a room
to create overpressure in 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 | F24F2011/0004 |
| Official title | {to create overpressure in a room} |
| Display label | to create overpressure in a room |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Indoor air cleaning network mechanism system
US-2026048351-A1 · Feb 19, 2026 · US
Positive pressure control method of indoor air cleaning network mechanism system
US-2026049728-A1 · Feb 19, 2026 · US
Indoor air cleaning system
US-2025224126-A1 · Jul 10, 2025 · US
Apparatus having a protective envelope, use thereof, and method for operating a room region
US-12320546-B2 · Jun 3, 2025 · US
System and controller for adjusting an amount of exterior air supplied to a premise
US-2024230124-A1 · Jul 11, 2024 · US
Ventilation system
US-2024210056-A1 · Jun 27, 2024 · US
Managed air using pressure data
US-2024085047-A1 · Mar 14, 2024 · US
System and method for access control using differential air pressure
US-11767997-B2 · Sep 26, 2023 · US
Encapsulated cleanroom system
US-11686479-B2 · Jun 27, 2023 · US
Air conditioning apparatus and method of controlling indoor pressure using same
US-2023194119-A1 · Jun 22, 2023 · US
Apparatus having a protective envelope, use thereof, and method for operating a room region
US-2023093603-A1 · Mar 23, 2023 · US
System and method for access control using differential air pressure
US-2022404046-A1 · Dec 22, 2022 · US
System and method for access control using differential air pressure
US-11435098-B2 · Sep 6, 2022 · US
Encapsulated cleanroom system
US-2021302034-A1 · Sep 30, 2021 · US
Airflow control system of a work vehicle
US-10933713-B2 · Mar 2, 2021 · US
System and method for access control using differential air pressure
US-2020292187-A1 · Sep 17, 2020 · US
Cooling systems for small equipment rooms and methods of cooling small equipment rooms
US-10342166-B2 · Jul 2, 2019 · US
Airflow control system of a work vehicle
US-2018178617-A1 · Jun 28, 2018 · US
Ventilation system, ventilation method, ventilation control device, and non-transitory computer-readable recording medium
US-9869482-B2 · Jan 16, 2018 · US