- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 3/16 - 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 ozonisation
Patent holdings for IPC class F24F 3/16
Total number of patents in this class: 1990
10-year publication summary
163
|
173
|
264
|
275
|
279
|
253
|
274
|
171
|
61
|
13
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
LG Electronics Inc. | 69257 |
149 |
Samsung Electronics Co., Ltd. | 131630 |
46 |
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
38 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
34 |
Koninklijke Philips N.V. | 22975 |
32 |
Coway Co., Ltd. | 649 |
29 |
Midea Group Co., Ltd. | 4025 |
26 |
Daikin Industries, Ltd. | 9495 |
19 |
3m Innovative Properties Company | 18406 |
18 |
Camfil AB | 226 |
18 |
Seoul Viosys Co., Ltd. | 1359 |
18 |
Haier Smart Home Co., Ltd. | 4882 |
16 |
Mitsubishi Electric Corporation | 43934 |
15 |
Enverid Systems, Inc. | 80 |
14 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
14 |
Dyson Technology Limited | 3124 |
13 |
Global Plasma Solutions, Inc. | 68 |
13 |
Versuni Holding B.V. | 817 |
13 |
Blueair AB | 102 |
12 |
Shanghai Bixiufu Enterprise Management Co., Ltd. | 201 |
12 |
Other owners | 1441 |