- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse of air currents for screening
- F24F 3/00 - 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
Patent holdings for IPC class F24F 3/00
Total number of patents in this class: 372
10-year publication summary
|
48
|
38
|
33
|
35
|
32
|
32
|
18
|
22
|
15
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75561 |
25 |
| Mitsubishi Electric Corporation | 47893 |
20 |
| Daikin Industries, Ltd. | 10457 |
20 |
| Carrier Corporation | 3964 |
14 |
| Lennox Industries Inc. | 1103 |
13 |
| Tyco Fire & Security GmbH | 3615 |
13 |
| Siemens Industry, Inc. | 1585 |
8 |
| Omachron Intellectual Property Inc. | 965 |
5 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 974 |
5 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1920 |
5 |
| Johnson Controls Light Commercial IP GmbH | 370 |
5 |
| Samsung Electronics Co., Ltd. | 157039 |
4 |
| Fisher & Paykel Healthcare Limited | 2627 |
4 |
| MJC, Inc. | 18 |
4 |
| Rheem Manufacturing Company | 1012 |
4 |
| Haier Smart Home Co., Ltd. | 5696 |
4 |
| Beijing Jingkelun Engineering Design and Research Institute Co., Ltd. | 12 |
4 |
| Denso Wave Incorporated | 399 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 33792 |
3 |
| Johnson Controls Technology Company | 1388 |
3 |
| Other owners | 206 |