Backdraft damper with angled frame for terminal unit
US-2025347439-A1 · Nov 13, 2025 · US
with ducts including air distributors, e.g. air collecting boxes with at least three openings
with ducts including air distributors, e.g. air collecting boxes with at least three openings · 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 | F24F13/0236 |
| Official title | {with ducts including air distributors, e.g. air collecting boxes with at least three openings} |
| Display label | with ducts including air distributors, e.g. air collecting boxes with at least three openings |
| Total patents | 64 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 17 |
| 2022 | 6 |
| 2023 | 13 |
| 2024 | 5 |
| 2025 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compartment, Air-Conditioned Vehicle, and Air-Conditioned Building
US-2025327595-A1 · Oct 23, 2025 · US
Air management apparatus or device
US-12366367-B2 · Jul 22, 2025 · US
Air management apparatus or device
US-12196431-B2 · Jan 14, 2025 · US
Airflow mix manifold
US-2024383608-A1 · Nov 21, 2024 · US
Interface for a plenum fan
US-2024255005-A1 · Aug 1, 2024 · US
Interface for a plenum fan
US-11959495-B2 · Apr 16, 2024 · US
Air cooling unit
US-11944170-B2 · Apr 2, 2024 · US
Air management apparatus or device
US-11906176-B2 · Feb 20, 2024 · US
Air management apparatus or device
US-11852360-B2 · Dec 26, 2023 · US
Air quality enhancement system based on fluid mechanics and integrated uv emission
US-2023400205-A1 · Dec 14, 2023 · US
Vent with inversion protection
US-2023392818-A1 · Dec 7, 2023 · US
Air management apparatus or device
US-11796190-B2 · Oct 24, 2023 · US
Device for distributing air
US-11796215-B2 · Oct 24, 2023 · US
Air management apparatus or device
US-11774113-B2 · Oct 3, 2023 · US
Gas furnace
US-11747039-B2 · Sep 5, 2023 · US
Film door belt fluid flow control system
US-11719463-B2 · Aug 8, 2023 · US
Indoor adaptive ventilation system and method based on multi-vent ventilation modules
US-2023151980-A1 · May 18, 2023 · US
Sealing plate assembly and air conditioner
US-11629879-B2 · Apr 18, 2023 · US
Air management apparatus and method thereof
US-11566796-B2 · Jan 31, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F13/0236?
- CPC F24F13/0236 is the Cooperative Patent Classification code for “with ducts including air distributors, e.g. air collecting boxes with at least three openings.”
- How many patents are filed under CPC F24F13/0236 (with ducts including air distributors, e.g. air collecting boxes with at least three openings)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC F24F13/0236 growing?
- Publication counts under this code: 5 in 2024 vs 8 in 2025 (latest complete years).