- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 11/33 - Responding to malfunctions or emergencies to fire, excessive heat or smoke
Patent holdings for IPC class F24F 11/33
Total number of patents in this class: 122
10-year publication summary
|
1
|
2
|
11
|
18
|
18
|
10
|
18
|
19
|
11
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qingdao Haier Air Conditioner General Corp.,ltd | 2335 |
15 |
| Google LLC | 40800 |
14 |
| Haier Smart Home Co., Ltd. | 5299 |
14 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1830 |
13 |
| Daikin Industries, Ltd. | 9836 |
3 |
| Lennox Industries Inc. | 1099 |
3 |
| State Farm Mutual Automobile Insurance Company | 2923 |
3 |
| Tyco Fire & Security GmbH | 3296 |
3 |
| Fläktgroup Sweden AB | 92 |
3 |
| Johnson Controls Tyco IP Holdings LLP | 715 |
3 |
| O'daniels, LLC. | 57 |
3 |
| Honeywell International Inc. | 14012 |
2 |
| Mitsubishi Electric Corporation | 44794 |
2 |
| Siemens Industry, Inc. | 1429 |
2 |
| Air Distribution Technologies IP, LLC | 154 |
2 |
| Climate Recovery Ind AB | 17 |
2 |
| Tyco Fire Products LP | 842 |
2 |
| ObjectVideo Labs, LLC | 153 |
2 |
| Rockwool A/S | 784 |
2 |
| David John Royle | 2 |
2 |
| Other owners | 27 |