- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 1/32 - Refrigerant piping for connecting the separate outdoor unit to indoor units
Patent holdings for IPC class F24F 1/32
Total number of patents in this class: 292
10-year publication summary
15
|
20
|
15
|
35
|
28
|
62
|
36
|
18
|
31
|
9
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Daikin Industries, Ltd. | 9495 |
56 |
Mitsubishi Electric Corporation | 43934 |
55 |
LG Electronics Inc. | 69257 |
45 |
Samsung Electronics Co., Ltd. | 131630 |
14 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
12 |
GD Midea Heating & Ventilating Equipment Co., Ltd. | 428 |
8 |
Midea Group Co., Ltd. | 4025 |
8 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
6 |
Fujitsu General Limited | 541 |
5 |
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
5 |
Hitachi-johnson Controls Air Conditioning, Inc. | 499 |
5 |
Haier Smart Home Co., Ltd. | 4882 |
5 |
Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
5 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
4 |
Joi Holding LLC | 47 |
4 |
Treau, Inc. | 19 |
4 |
Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 143 |
4 |
Toshiba Carrier Corporation | 567 |
3 |
Mitsubishi Heavy Industries Thermal Systems, Ltd. | 786 |
3 |
Daikin Manufacturing Company, L.P. | 18 |
3 |
Other owners | 38 |