- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 13/00 - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING - Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
Patent holdings for IPC class F24F 13/00
Total number of patents in this class: 529
10-year publication summary
|
31
|
19
|
31
|
43
|
62
|
56
|
55
|
38
|
35
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GREE Electric Appliances, Inc. of Zhuhai | 3007 |
48 |
| Midea Group Co., Ltd. | 4025 |
38 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
35 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
33 |
| Haier Smart Home Co., Ltd. | 4882 |
24 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
23 |
| LG Electronics Inc. | 69257 |
18 |
| Gree Electric Appliances (Wuhan) Co., Ltd. | 316 |
12 |
| Lennox Industries Inc. | 1088 |
11 |
| Ningbo Aux Electric Co., Ltd. | 150 |
10 |
| Samsung Electronics Co., Ltd. | 131630 |
8 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 394 |
8 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 428 |
6 |
| Oy Halton Group Ltd. | 147 |
5 |
| GD Midea Environment Appliances MFG Co., Ltd. | 177 |
5 |
| Aux Air Conditioning Limited by Share Ltd | 50 |
5 |
| Aux Air Conditioner Co., Ltd. | 88 |
5 |
| Carrier Corporation | 4759 |
4 |
| Broan-NuTone LLC | 459 |
4 |
| BYD Company Limited | 3700 |
4 |
| Other owners | 223 |