- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 8/20 - Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
Patent holdings for IPC class F24F 8/20
Total number of patents in this class: 173
10-year publication summary
|
1
|
0
|
0
|
1
|
2
|
16
|
58
|
36
|
25
|
3
|
| 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 | 2358 |
24 |
| Haier Smart Home Co., Ltd. | 5422 |
24 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1851 |
23 |
| LG Electronics Inc. | 72473 |
5 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1797 |
5 |
| Samsung Electronics Co., Ltd. | 144143 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 30967 |
3 |
| Microjet Technology Co., Ltd. | 444 |
3 |
| Midea Group Co., Ltd. | 4484 |
3 |
| Toyota Motor Corporation | 31451 |
2 |
| Daikin Industries, Ltd. | 9957 |
2 |
| Blueair AB | 113 |
2 |
| Oy Halton Group Ltd. | 135 |
2 |
| Research Products Corporation | 180 |
2 |
| Kairlaser S.r.l. | 7 |
2 |
| Danvita Thermal LLC | 3 |
2 |
| The Boeing Company | 20013 |
1 |
| Toshiba Corporation | 12286 |
1 |
| Seiko Epson Corporation | 19269 |
1 |
| Mitsubishi Electric Corporation | 45811 |
1 |
| Other owners | 61 |