- 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: 196
10-year publication summary
|
0
|
1
|
3
|
5
|
13
|
31
|
35
|
31
|
13
|
9
|
| 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 | 2428 |
20 |
| Haier Smart Home Co., Ltd. | 5712 |
20 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1921 |
20 |
| LG Electronics Inc. | 75694 |
16 |
| Samsung Electronics Co., Ltd. | 157719 |
11 |
| Hisense (Guangdong) Air Conditioning Co., Ltd. | 140 |
10 |
| Hisense Homeappliances Group Co., Ltd. | 44 |
7 |
| Cendori Co., Ltd. | 24 |
6 |
| Dyson Technology Limited | 3997 |
4 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2089 |
4 |
| Blueair AB | 5 |
4 |
| Blueair AB | 117 |
3 |
| Midea Group Co., Ltd. | 5028 |
3 |
| Cheongpungin Co., Ltd. | 5 |
3 |
| Daikin Industries, Ltd. | 10499 |
2 |
| Carrier Corporation | 3955 |
2 |
| Indian Institute of Technology Bombay | 272 |
2 |
| Tyco Fire & Security GmbH | 3640 |
2 |
| CS E&L Co., Ltd. | 8 |
2 |
| Hisense Air Conditioning Co., Ltd. | 68 |
2 |
| Other owners | 53 |