- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 1/00 - Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
Patent holdings for IPC class F24F 1/00
Total number of patents in this class: 2121
10-year publication summary
|
172
|
263
|
292
|
341
|
112
|
41
|
39
|
31
|
18
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44851 |
248 |
| Daikin Industries, Ltd. | 9838 |
182 |
| GREE Electric Appliances, Inc. of Zhuhai | 3154 |
178 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2340 |
153 |
| LG Electronics Inc. | 71039 |
148 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1661 |
112 |
| Midea Group Co., Ltd. | 4300 |
110 |
| Samsung Electronics Co., Ltd. | 139001 |
104 |
| Sharp Kabushiki Kaisha | 18867 |
55 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 494 |
39 |
| Gree Electric Appliances (Wuhan) Co., Ltd. | 318 |
29 |
| Guangdong Midea Refrigeration Appliances Co., Ltd. | 115 |
26 |
| Haier Smart Home Co., Ltd. | 5310 |
26 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1835 |
25 |
| Panasonic Corporation | 20315 |
24 |
| Carrier Corporation | 4451 |
22 |
| Fujitsu General Limited | 579 |
22 |
| Toshiba Carrier Corporation | 516 |
20 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 546 |
18 |
| Trane International Inc. | 1153 |
15 |
| Other owners | 565 |