Indoor unit of an air conditioner
US-2026016173-A1 · Jan 15, 2026 · US
with springs
with springs · 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 | F24F2013/146 |
| Official title | {with springs} |
| Display label | with springs |
| Total patents | 57 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 9 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 8 |
| 2024 | 12 |
| 2025 | 10 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Indoor unit of an air conditioner
US-2026016172-A1 · Jan 15, 2026 · US
Damper for HVAC system
US-12474081-B2 · Nov 18, 2025 · US
Indoor unit of an air conditioner
US-12372253-B2 · Jul 29, 2025 · US
Damper door for an air conditioning appliance
US-12345439-B2 · Jul 1, 2025 · US
Indoor unit of an air conditioner
US-12331941-B2 · Jun 17, 2025 · US
Indoor unit of an air conditioner
US-12331940-B2 · Jun 17, 2025 · US
Indoor unit of an air conditioner
US-12331942-B2 · Jun 17, 2025 · US
Indoor unit of an air conditioner
US-12331939-B2 · Jun 17, 2025 · US
Actuator device having power spring retention
US-12253067-B2 · Mar 18, 2025 · US
Actuator with modular fail-safe assembly
US-2025060126-A1 · Feb 20, 2025 · US
Indoor unit of an air conditioner
US-12203664-B2 · Jan 21, 2025 · US
Air purifier
US-2024393009-A1 · Nov 28, 2024 · US
Ventilation device comprising at least one automatically closing flap, aircraft comprising at least one such ventilation device
US-2024391297-A1 · Nov 28, 2024 · US
Actuator device having power spring retention
US-2024328396-A1 · Oct 3, 2024 · US
Damper door for an air conditioning appliance
US-2024328665-A1 · Oct 3, 2024 · US
Damper for hvac system
US-2024280289-A1 · Aug 22, 2024 · US
Indoor unit of an air conditioner
US-2024210044-A1 · Jun 27, 2024 · US
Indoor unit of an air conditioner
US-2024142117-A1 · May 2, 2024 · US
Damper for HVAC system
US-11971190-B2 · Apr 30, 2024 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24F2013/146?
- CPC F24F2013/146 is the Cooperative Patent Classification code for “with springs.”
- How many patents are filed under CPC F24F2013/146 (with springs)?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC F24F2013/146 growing?
- Publication counts under this code: 12 in 2024 vs 10 in 2025 (latest complete years).