- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 6/04 - Air-humidification by evaporation of water in the air using stationary unheated wet elements
Patent holdings for IPC class F24F 6/04
Total number of patents in this class: 405
10-year publication summary
|
30
|
27
|
61
|
41
|
40
|
59
|
35
|
33
|
46
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
34 |
| LG Electronics Inc. | 69257 |
31 |
| Dyson Technology Limited | 3124 |
18 |
| Coway Co., Ltd. | 649 |
12 |
| Sharp Kabushiki Kaisha | 18957 |
11 |
| Ademco Inc. | 1374 |
11 |
| Daikin Industries, Ltd. | 9495 |
10 |
| Samsung Electronics Co., Ltd. | 131630 |
9 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
9 |
| Midea Group Co., Ltd. | 4025 |
8 |
| Panasonic Corporation | 20786 |
5 |
| Condair Group AG | 41 |
5 |
| Ontel Products Corporation | 441 |
5 |
| GD Midea Environment Appliances MFG Co., Ltd. | 177 |
5 |
| Denso Corporation | 23338 |
4 |
| Koninklijke Philips N.V. | 22975 |
4 |
| Carl Freudenberg KG | 1346 |
4 |
| Daicel Corporation | 2128 |
4 |
| DRI-STEEM Corporation | 44 |
4 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
4 |
| Other owners | 208 |