- 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: 167
10-year publication summary
|
5
|
8
|
10
|
24
|
25
|
26
|
22
|
24
|
9
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lennox Industries Inc. | 1088 |
15 |
| BEST Technologies, Inc. | 24 |
12 |
| Honeywell International Inc. | 13799 |
11 |
| Air Distribution Technologies IP, LLC | 160 |
11 |
| Tyco Fire & Security GmbH | 2172 |
11 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
7 |
| Siemens Industry, Inc. | 1417 |
6 |
| Daikin Industries, Ltd. | 9495 |
5 |
| Ademco Inc. | 1374 |
5 |
| Carrier Corporation | 4759 |
4 |
| Arzel Zoning Technology, Inc. | 28 |
4 |
| Rheem Manufacturing Company | 861 |
4 |
| Trane International Inc. | 1123 |
4 |
| Johnson Controls Technology Company | 1522 |
3 |
| Broan-NuTone LLC | 459 |
3 |
| Goodman Global Group, Inc | 33 |
3 |
| LG Electronics Inc. | 69257 |
2 |
| DENSO International America, Inc. | 609 |
2 |
| Daikin Europe N.v. | 171 |
2 |
| Andritz Inc. | 344 |
2 |
| Other owners | 51 |