Presentation information generation device and presentation information generation method
US-12548104-B2 · Feb 10, 2026 · US
Ventilation systems
Ventilation systems · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B66B11/024 |
| Official title | {Ventilation systems} |
| Display label | Ventilation systems |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 7 |
| 2020 | 4 |
| 2021 | 8 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 7 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Elevator system with cabin divider
US-12540053-B2 · Feb 3, 2026 · US
Elevator-based air quality sensing system for buildings
US-12487002-B2 · Dec 2, 2025 · US
Protector for an elevator car
US-12187578-B2 · Jan 7, 2025 · US
Elevator cab ventilation
US-12180035-B2 · Dec 31, 2024 · US
Protector for an elevator car
US-2024375914-A1 · Nov 14, 2024 · US
Presentation information generation device and presentation information generation method
US-2024317543-A1 · Sep 26, 2024 · US
Presentation information generation device and presentation information generation method
US-2024296515-A1 · Sep 5, 2024 · US
Elevator cab air purification
US-11898776-B2 · Feb 13, 2024 · US
Elevator car and uvc radiation device for an elevator car
US-2024009333-A1 · Jan 11, 2024 · US
Counterweight handover test device and method
US-11866298-B2 · Jan 9, 2024 · US
Elevator system with cabin divider
US-2023322523-A1 · Oct 12, 2023 · US
Elevator in use for a climate control in a building
US-2023032412-A1 · Feb 2, 2023 · US
Elevator car, elevator and method
US-11548762-B2 · Jan 10, 2023 · US
Sound absorbing panels for elevator
US-11279594-B2 · Mar 22, 2022 · US
Cooling system for elevator with electronic visual displays
US-11267675-B2 · Mar 8, 2022 · US
Elevator cab air purification
US-2022049862-A1 · Feb 17, 2022 · US
Elevator cab ventilation
US-2022048738-A1 · Feb 17, 2022 · US
Elevator
US-2021395043-A1 · Dec 23, 2021 · US
Elevator car, elevator and method
US-2021354955-A1 · Nov 18, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B66B11/024?
- CPC B66B11/024 is the Cooperative Patent Classification code for “Ventilation systems.”
- How many patents are filed under CPC B66B11/024 (Ventilation systems)?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC B66B11/024 growing?
- Publication counts under this code: 7 in 2024 vs 2 in 2025 (latest complete years).