- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 11/873 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling refrigerant heaters
Patent holdings for IPC class F24F 11/873
Total number of patents in this class: 20
10-year publication summary
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4
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daikin Industries, Ltd. | 9495 |
2 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 428 |
2 |
| Midea Group Co., Ltd. | 4025 |
2 |
| Nelumbo Inc. | 40 |
2 |
| Tyco Fire & Security GmbH | 2172 |
2 |
| Johnson Controls Technology Company | 1522 |
1 |
| Kyungdong Navien Co., Ltd. | 566 |
1 |
| Mitsubishi Electric US, Inc. | 68 |
1 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
1 |
| Rheem Manufacturing Company | 861 |
1 |
| Haier Smart Home Co., Ltd. | 4882 |
1 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
1 |
| State Grid Jiangsu Electric Power Company Research Institute | 19 |
1 |
| Jiangsu Electric Power Research Institute Co., Ltd. | 29 |
1 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
1 |
| Other owners | 0 |