- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use 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: 167
10-year publication summary
|
0
|
0
|
1
|
3
|
5
|
13
|
31
|
35
|
30
|
0
|
| 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 | 2332 |
19 |
| Haier Smart Home Co., Ltd. | 5289 |
19 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1827 |
19 |
| LG Electronics Inc. | 70831 |
14 |
| Samsung Electronics Co., Ltd. | 138320 |
8 |
| Hisense (Guangdong) Air Conditioning Co., Ltd. | 64 |
8 |
| Hisense Homeappliances Group Co., Ltd. | 32 |
7 |
| Dyson Technology Limited | 3410 |
4 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1653 |
4 |
| Tyco Fire & Security GmbH | 3281 |
4 |
| Blueair AB | 5 |
4 |
| Blueair AB | 110 |
3 |
| Cendori Co., Ltd. | 17 |
3 |
| Midea Group Co., Ltd. | 4277 |
3 |
| Daikin Industries, Ltd. | 9766 |
2 |
| Carrier Corporation | 4443 |
2 |
| Indian Institute of Technology Bombay | 247 |
2 |
| CS E&L Co., Ltd. | 8 |
2 |
| The Boeing Company | 19900 |
1 |
| Hewlett-Packard Development Company, L.P. | 27484 |
1 |
| Other owners | 38 |