- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 3/12 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
Patent holdings for IPC class F24F 3/12
Total number of patents in this class: 86
10-year publication summary
|
15
|
5
|
17
|
5
|
12
|
5
|
5
|
4
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Delos Living LLC | 114 |
6 |
| Hitachi Chemical Company, Ltd. | 2231 |
5 |
| Mitsubishi Electric Corporation | 48287 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
3 |
| Johnson Controls Technology Company | 1374 |
3 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2105 |
3 |
| Midea Group Co., Ltd. | 5070 |
3 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2435 |
3 |
| Koninklijke Philips N.V. | 25999 |
2 |
| Bombardier Inc. | 764 |
2 |
| Kyungdong Navien Co., Ltd. | 648 |
2 |
| The Texas a & M University System | 1919 |
2 |
| New Earth Solutions Inc. | 6 |
2 |
| Spout Ventures Inc. | 9 |
2 |
| LG Electronics Inc. | 75973 |
1 |
| Airbus Operations GmbH | 3458 |
1 |
| Panasonic Electric Works Co., Ltd. | 640 |
1 |
| Kyocera Corporation | 14445 |
1 |
| Daikin Industries, Ltd. | 10509 |
1 |
| Hamilton Sundstrand Corporation | 5013 |
1 |
| Other owners | 38 |