- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 140/40 - Damper positions, e.g. open or closed
Patent holdings for IPC class F24F 140/40
Total number of patents in this class: 178
10-year publication summary
|
8
|
10
|
24
|
26
|
26
|
23
|
25
|
12
|
9
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tyco Fire & Security GmbH | 3281 |
24 |
| BEST Technologies, Inc. | 26 |
15 |
| Lennox Industries Inc. | 1096 |
15 |
| Honeywell International Inc. | 14009 |
11 |
| Siemens Industry, Inc. | 1425 |
8 |
| Air Distribution Technologies IP, LLC | 153 |
8 |
| Daikin Industries, Ltd. | 9766 |
5 |
| Ademco Inc. | 1399 |
5 |
| Carrier Corporation | 4443 |
4 |
| Arzel Zoning Technology, Inc. | 29 |
4 |
| Rheem Manufacturing Company | 915 |
4 |
| Trane International Inc. | 1147 |
4 |
| Johnson Controls Technology Company | 1484 |
3 |
| Broan-NuTone LLC | 460 |
3 |
| Goodman Global Group, Inc | 36 |
3 |
| LG Electronics Inc. | 70831 |
2 |
| DENSO International America, Inc. | 606 |
2 |
| Daikin Europe N.v. | 192 |
2 |
| Andritz Inc. | 338 |
2 |
| Google LLC | 40708 |
2 |
| Other owners | 52 |