- 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: 693
10-year publication summary
|
6
|
25
|
77
|
64
|
96
|
88
|
84
|
84
|
67
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47380 |
81 |
| Lennox Industries Inc. | 1090 |
65 |
| Daikin Industries, Ltd. | 10223 |
46 |
| Tyco Fire & Security GmbH | 3510 |
34 |
| Haier Smart Home Co., Ltd. | 5614 |
33 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2408 |
30 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1901 |
30 |
| Carrier Corporation | 3976 |
17 |
| Samsung Electronics Co., Ltd. | 151726 |
16 |
| Honeywell International Inc. | 13564 |
13 |
| Johnson Controls Technology Company | 1403 |
12 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 714 |
12 |
| GREE Electric Appliances, Inc. of Zhuhai | 3268 |
12 |
| LG Electronics Inc. | 74447 |
11 |
| Goodman Manufacturing Company, L.P., Goodman Holding Company, a Texas corporation, its General Partner | 144 |
11 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 239 |
11 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1969 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 33033 |
9 |
| Midea Group Co., Ltd. | 4746 |
9 |
| Trane International Inc. | 1208 |
9 |
| Other owners | 222 |