- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 8/90 - Cleaning of purification apparatus
Patent holdings for IPC class F24F 8/90
Total number of patents in this class: 177
10-year publication summary
|
0
|
0
|
1
|
3
|
5
|
13
|
31
|
35
|
30
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qingdao Haier Air Conditioner General Corp.,ltd | 2364 |
19 |
| Haier Smart Home Co., Ltd. | 5435 |
19 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1857 |
19 |
| LG Electronics Inc. | 72737 |
15 |
| Hisense (Guangdong) Air Conditioning Co., Ltd. | 83 |
10 |
| Samsung Electronics Co., Ltd. | 145025 |
8 |
| Hisense Homeappliances Group Co., Ltd. | 36 |
7 |
| Cendori Co., Ltd. | 20 |
5 |
| Dyson Technology Limited | 3620 |
4 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1815 |
4 |
| Blueair AB | 5 |
4 |
| Blueair AB | 114 |
3 |
| Midea Group Co., Ltd. | 4517 |
3 |
| Daikin Industries, Ltd. | 9973 |
2 |
| Carrier Corporation | 4354 |
2 |
| Indian Institute of Technology Bombay | 259 |
2 |
| Tyco Fire & Security GmbH | 3187 |
2 |
| CS E&L Co., Ltd. | 8 |
2 |
| Hisense Air Conditioning Co., Ltd. | 50 |
2 |
| Johnson Controls Light Commercial IP GmbH | 306 |
2 |
| Other owners | 43 |