- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 11/89 - Arrangement or mounting of control or safety devices
Patent holdings for IPC class F24F 11/89
Total number of patents in this class: 1786
10-year publication summary
12
|
32
|
87
|
131
|
204
|
195
|
192
|
201
|
224
|
105
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
174 |
Haier Smart Home Co., Ltd. | 4882 |
172 |
Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
161 |
Mitsubishi Electric Corporation | 43934 |
146 |
Daikin Industries, Ltd. | 9495 |
137 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
87 |
Midea Group Co., Ltd. | 4025 |
81 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
43 |
LG Electronics Inc. | 69257 |
33 |
GD Midea Heating & Ventilating Equipment Co., Ltd. | 428 |
32 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
30 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
28 |
Samsung Electronics Co., Ltd. | 131630 |
25 |
Google LLC | 38759 |
22 |
Tyco Fire & Security GmbH | 2172 |
22 |
Ningbo Aux Electric Co., Ltd. | 150 |
21 |
Hitachi-johnson Controls Air Conditioning, Inc. | 499 |
19 |
Mitsubishi Heavy Industries Thermal Systems, Ltd. | 786 |
17 |
Carrier Corporation | 4759 |
16 |
Aux Air Conditioner Co., Ltd. | 88 |
15 |
Other owners | 505 |