- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 140/20 - Heat-exchange fluid temperature
Patent holdings for IPC class F24F 140/20
Total number of patents in this class: 473
10-year publication summary
5
|
8
|
12
|
21
|
50
|
69
|
68
|
57
|
52
|
10
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Haier Smart Home Co., Ltd. | 4882 |
60 |
Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
57 |
Mitsubishi Electric Corporation | 43934 |
55 |
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
54 |
Daikin Industries, Ltd. | 9495 |
25 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
18 |
Lennox Industries Inc. | 1088 |
15 |
Belimo Holding AG | 235 |
14 |
GD Midea Heating & Ventilating Equipment Co., Ltd. | 428 |
13 |
Midea Group Co., Ltd. | 4025 |
12 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
12 |
Samsung Electronics Co., Ltd. | 131630 |
11 |
LG Electronics Inc. | 69257 |
10 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
9 |
Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 134 |
8 |
Fujitsu General Limited | 541 |
5 |
Tyco Fire & Security GmbH | 2172 |
5 |
Hitachi-johnson Controls Air Conditioning, Inc. | 499 |
5 |
Mitsubishi Heavy Industries Thermal Systems, Ltd. | 786 |
5 |
Carrier Corporation | 4759 |
4 |
Other owners | 76 |