- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 11/871 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
Patent holdings for IPC class F24F 11/871
Total number of patents in this class: 140
10-year publication summary
|
1
|
6
|
5
|
12
|
20
|
12
|
20
|
13
|
12
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48172 |
20 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2096 |
14 |
| Haier Smart Home Co., Ltd. | 5728 |
13 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1926 |
12 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2433 |
9 |
| Omachron Intellectual Property Inc. | 970 |
8 |
| Daikin Industries, Ltd. | 10502 |
7 |
| Midea Group Co., Ltd. | 5052 |
6 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 513 |
5 |
| Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 271 |
4 |
| Samsung Electronics Co., Ltd. | 158442 |
3 |
| Fujitsu General Limited | 600 |
3 |
| GREE Electric Appliances, Inc. of Zhuhai | 3317 |
3 |
| Johnson Controls Light Commercial IP GmbH | 372 |
3 |
| Carrier Corporation | 3947 |
2 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 768 |
2 |
| Goodman Manufacturing Company, L.P., Goodman Holding Company, a Texas corporation, its General Partner | 144 |
2 |
| Tyco Fire & Security GmbH | 3672 |
2 |
| Wuhu Maty Air-Conditioning Equipment Co., Ltd. | 82 |
2 |
| LG Electronics Inc. | 75855 |
1 |
| Other owners | 19 |