- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse 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: 135
10-year publication summary
|
2
|
11
|
18
|
18
|
11
|
18
|
19
|
13
|
8
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qingdao Haier Air Conditioner General Corp.,ltd | 2435 |
15 |
| Google LLC | 44674 |
14 |
| Haier Smart Home Co., Ltd. | 5732 |
14 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1928 |
13 |
| Tyco Fire & Security GmbH | 3675 |
6 |
| Mitsubishi Electric Corporation | 48236 |
4 |
| Daikin Industries, Ltd. | 10513 |
4 |
| Lennox Industries Inc. | 1114 |
3 |
| State Farm Mutual Automobile Insurance Company | 3452 |
3 |
| Tyco Fire Products LP | 885 |
3 |
| Rockwool A/S | 842 |
3 |
| Fläktgroup Sweden AB | 97 |
3 |
| O'daniels, LLC. | 62 |
3 |
| Honeywell International Inc. | 12770 |
2 |
| Siemens Industry, Inc. | 1587 |
2 |
| Air Distribution Technologies IP, LLC | 254 |
2 |
| Climate Recovery Ind AB | 17 |
2 |
| ObjectVideo Labs, LLC | 168 |
2 |
| David John Royle | 2 |
2 |
| LG Electronics Inc. | 75910 |
1 |
| Other owners | 34 |