- 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: 687
10-year publication summary
|
6
|
25
|
77
|
64
|
96
|
88
|
84
|
84
|
67
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47267 |
81 |
| Lennox Industries Inc. | 1105 |
65 |
| Daikin Industries, Ltd. | 10210 |
45 |
| Tyco Fire & Security GmbH | 3492 |
34 |
| Haier Smart Home Co., Ltd. | 5581 |
33 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2401 |
30 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1894 |
30 |
| Carrier Corporation | 3977 |
17 |
| Samsung Electronics Co., Ltd. | 150751 |
15 |
| Honeywell International Inc. | 13559 |
13 |
| Johnson Controls Technology Company | 1404 |
12 |
| GREE Electric Appliances, Inc. of Zhuhai | 3267 |
12 |
| LG Electronics Inc. | 74175 |
11 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 703 |
11 |
| Goodman Manufacturing Company, L.P., Goodman Holding Company, a Texas corporation, its General Partner | 143 |
11 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 234 |
11 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1942 |
10 |
| Trane International Inc. | 1206 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 32838 |
8 |
| Midea Group Co., Ltd. | 4715 |
8 |
| Other owners | 221 |