- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 11/72 - Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
Patent holdings for IPC class F24F 11/72
Total number of patents in this class: 534
10-year publication summary
6
|
12
|
12
|
34
|
58
|
48
|
80
|
93
|
81
|
11
|
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 |
59 |
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
57 |
Mitsubishi Electric Corporation | 43934 |
23 |
Daikin Industries, Ltd. | 9495 |
23 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
15 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
15 |
Samsung Electronics Co., Ltd. | 131630 |
13 |
LG Electronics Inc. | 69257 |
12 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
11 |
Lennox Industries Inc. | 1088 |
10 |
Midea Group Co., Ltd. | 4025 |
9 |
Trane International Inc. | 1123 |
9 |
Carrier Corporation | 4759 |
6 |
Siemens Industry, Inc. | 1417 |
5 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
5 |
Johnson Controls Technology Company | 1522 |
3 |
De'Longhi Appliances S.R.L. Con Unico Socio | 358 |
3 |
GD Midea Heating & Ventilating Equipment Co., Ltd. | 428 |
3 |
QC Manufacturing, Inc. | 27 |
3 |
Other owners | 190 |