- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 11/38 - Failure diagnosis
Patent holdings for IPC class F24F 11/38
Total number of patents in this class: 726
10-year publication summary
|
6
|
25
|
78
|
66
|
110
|
101
|
88
|
84
|
70
|
43
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47893 |
82 |
| Lennox Industries Inc. | 1103 |
64 |
| Daikin Industries, Ltd. | 10457 |
48 |
| Tyco Fire & Security GmbH | 3615 |
39 |
| Haier Smart Home Co., Ltd. | 5696 |
33 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2427 |
30 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1920 |
30 |
| Samsung Electronics Co., Ltd. | 157039 |
19 |
| Carrier Corporation | 3964 |
18 |
| Honeywell International Inc. | 12776 |
14 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 263 |
13 |
| LG Electronics Inc. | 75561 |
12 |
| Johnson Controls Technology Company | 1388 |
12 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2069 |
12 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 761 |
12 |
| GREE Electric Appliances, Inc. of Zhuhai | 3316 |
12 |
| Goodman Manufacturing Company, L.P., Goodman Holding Company, a Texas corporation, its General Partner | 144 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 33792 |
10 |
| Trane International Inc. | 1229 |
10 |
| Midea Group Co., Ltd. | 4955 |
9 |
| Other owners | 236 |