- 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: 109
10-year publication summary
|
5
|
1
|
2
|
11
|
18
|
18
|
10
|
18
|
18
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 38759 |
14 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
13 |
| Haier Smart Home Co., Ltd. | 4882 |
12 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
11 |
| Lennox Industries Inc. | 1088 |
3 |
| State Farm Mutual Automobile Insurance Company | 2560 |
3 |
| Fläktgroup Sweden AB | 94 |
3 |
| O'daniels, LLC. | 55 |
3 |
| Mitsubishi Electric Corporation | 43934 |
2 |
| Daikin Industries, Ltd. | 9495 |
2 |
| Siemens Industry, Inc. | 1417 |
2 |
| Air Distribution Technologies IP, LLC | 160 |
2 |
| Tyco Fire Products LP | 831 |
2 |
| Tyco Fire & Security GmbH | 2172 |
2 |
| ObjectVideo Labs, LLC | 149 |
2 |
| David John Royle | 2 |
2 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
2 |
| Emerald Planet Environmental Pty Ltd | 2 |
2 |
| Honeywell International Inc. | 13799 |
1 |
| Delta Electronics, Inc. | 2401 |
1 |
| Other owners | 25 |