- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
Patent holdings for IPC class F24F 11/86
Total number of patents in this class: 876
10-year publication summary
|
4
|
1
|
7
|
33
|
96
|
114
|
116
|
104
|
140
|
34
|
| 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 |
116 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
110 |
| Mitsubishi Electric Corporation | 43934 |
105 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
102 |
| Daikin Industries, Ltd. | 9495 |
60 |
| Lennox Industries Inc. | 1088 |
51 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
41 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
26 |
| Midea Group Co., Ltd. | 4025 |
23 |
| GREE Electric Appliances, Inc. of Zhuhai | 3007 |
22 |
| Copeland LP | 656 |
15 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 499 |
13 |
| Samsung Electronics Co., Ltd. | 131630 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
10 |
| Fujitsu General Limited | 541 |
10 |
| Toshiba Carrier Corporation | 567 |
9 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 428 |
8 |
| Trane International Inc. | 1123 |
8 |
| Tyco Fire & Security GmbH | 2172 |
8 |
| LG Electronics Inc. | 69257 |
6 |
| Other owners | 122 |