- 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: 701
10-year publication summary
|
6
|
25
|
77
|
64
|
96
|
88
|
84
|
84
|
67
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47511 |
81 |
| Lennox Industries Inc. | 1091 |
64 |
| Daikin Industries, Ltd. | 10380 |
47 |
| Tyco Fire & Security GmbH | 3534 |
34 |
| Haier Smart Home Co., Ltd. | 5641 |
33 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2422 |
30 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1915 |
30 |
| Carrier Corporation | 3971 |
18 |
| Samsung Electronics Co., Ltd. | 152914 |
17 |
| Honeywell International Inc. | 13561 |
13 |
| Johnson Controls Technology Company | 1401 |
12 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2002 |
12 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 733 |
12 |
| GREE Electric Appliances, Inc. of Zhuhai | 3274 |
12 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 246 |
12 |
| LG Electronics Inc. | 74791 |
11 |
| Goodman Manufacturing Company, L.P., Goodman Holding Company, a Texas corporation, its General Partner | 145 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 33375 |
9 |
| Midea Group Co., Ltd. | 4811 |
9 |
| Trane International Inc. | 1208 |
9 |
| Other owners | 225 |