- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 11/67 - Switching between heating and cooling modes
Patent holdings for IPC class F24F 11/67
Total number of patents in this class: 357
10-year publication summary
1
|
2
|
1
|
10
|
22
|
47
|
49
|
47
|
54
|
9
|
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 |
59 |
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
57 |
Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
53 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
15 |
Lennox Industries Inc. | 1088 |
15 |
Samsung Electronics Co., Ltd. | 131630 |
14 |
Mitsubishi Electric Corporation | 43934 |
12 |
Midea Group Co., Ltd. | 4025 |
11 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
11 |
Ademco Inc. | 1374 |
9 |
Daikin Industries, Ltd. | 9495 |
6 |
LG Electronics Inc. | 69257 |
5 |
E.ON Sverige Aktiebolag | 87 |
5 |
Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd. | 134 |
5 |
Tyco Fire & Security GmbH | 2172 |
5 |
Trane International Inc. | 1123 |
4 |
GD Midea Heating & Ventilating Equipment Co., Ltd. | 428 |
3 |
Generac Power Systems, Inc. | 379 |
3 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
3 |
Chongqing Haier Air Conditioner Co., Ltd | 30 |
3 |
Other owners | 59 |