- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use 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: 155
10-year publication summary
|
0
|
1
|
0
|
0
|
1
|
1
|
16
|
56
|
35
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
24 |
| Haier Smart Home Co., Ltd. | 4882 |
24 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
23 |
| Samsung Electronics Co., Ltd. | 131630 |
4 |
| LG Electronics Inc. | 69257 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
3 |
| Blueair AB | 102 |
2 |
| Microjet Technology Co., Ltd. | 344 |
2 |
| Oy Halton Group Ltd. | 147 |
2 |
| Research Products Corporation | 147 |
2 |
| Kairlaser S.r.l. | 7 |
2 |
| Toyota Motor Corporation | 28582 |
1 |
| The Boeing Company | 19843 |
1 |
| Toshiba Corporation | 12017 |
1 |
| Mitsubishi Electric Corporation | 43934 |
1 |
| Hyundai Motor Company | 19021 |
1 |
| Daikin Industries, Ltd. | 9495 |
1 |
| Advanced Imaging Research, Inc. | 16 |
1 |
| Delta T, LLC | 272 |
1 |
| Other owners | 53 |