- 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: 192
10-year publication summary
|
0
|
1
|
3
|
5
|
13
|
31
|
35
|
30
|
13
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qingdao Haier Air Conditioner General Corp.,ltd | 2422 |
20 |
| Haier Smart Home Co., Ltd. | 5645 |
20 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1915 |
20 |
| LG Electronics Inc. | 74953 |
16 |
| Samsung Electronics Co., Ltd. | 153573 |
11 |
| Hisense (Guangdong) Air Conditioning Co., Ltd. | 136 |
10 |
| Hisense Homeappliances Group Co., Ltd. | 44 |
7 |
| Cendori Co., Ltd. | 24 |
6 |
| Dyson Technology Limited | 3885 |
4 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2001 |
4 |
| Blueair AB | 5 |
4 |
| Blueair AB | 116 |
3 |
| Midea Group Co., Ltd. | 4833 |
3 |
| Cheongpungin Co., Ltd. | 5 |
3 |
| Daikin Industries, Ltd. | 10375 |
2 |
| Carrier Corporation | 3968 |
2 |
| Indian Institute of Technology Bombay | 271 |
2 |
| Tyco Fire & Security GmbH | 3533 |
2 |
| CS E&L Co., Ltd. | 8 |
2 |
| Hisense Air Conditioning Co., Ltd. | 64 |
2 |
| Other owners | 49 |