- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 3/14 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification
Patent holdings for IPC class F24F 3/14
Total number of patents in this class: 2149
10-year publication summary
154
|
178
|
215
|
219
|
224
|
187
|
202
|
209
|
149
|
43
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Daikin Industries, Ltd. | 9495 |
129 |
LG Electronics Inc. | 69257 |
63 |
Mitsubishi Electric Corporation | 43934 |
63 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
53 |
Therma-Stor LLC | 134 |
47 |
Nortek Air Solutions Canada, Inc. | 114 |
39 |
Samsung Electronics Co., Ltd. | 131630 |
38 |
Copeland LP | 656 |
35 |
Midea Group Co., Ltd. | 4025 |
31 |
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
31 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
30 |
Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
29 |
Lennox Industries Inc. | 1088 |
28 |
Sharp Kabushiki Kaisha | 18957 |
27 |
Haier Smart Home Co., Ltd. | 4882 |
27 |
Carrier Corporation | 4759 |
24 |
Kyungdong Navien Co., Ltd. | 566 |
21 |
Atlas Copco Airpower, naamloze vennootschap | 915 |
17 |
Coway Co., Ltd. | 649 |
17 |
Denso Corporation | 23338 |
16 |
Other owners | 1384 |