- 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: 373
10-year publication summary
|
27
|
48
|
38
|
33
|
35
|
32
|
32
|
17
|
20
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 72962 |
25 |
| Mitsubishi Electric Corporation | 46037 |
20 |
| Daikin Industries, Ltd. | 9991 |
19 |
| Carrier Corporation | 4348 |
16 |
| Lennox Industries Inc. | 1121 |
12 |
| Tyco Fire & Security GmbH | 3224 |
12 |
| Siemens Industry, Inc. | 1447 |
7 |
| Johnson Controls Tyco IP Holdings LLP | 640 |
6 |
| Omachron Intellectual Property Inc. | 903 |
5 |
| Rheem Manufacturing Company | 980 |
5 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 886 |
5 |
| Samsung Electronics Co., Ltd. | 145864 |
4 |
| Fisher & Paykel Healthcare Limited | 2470 |
4 |
| MJC, Inc. | 17 |
4 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1861 |
4 |
| Beijing Jingkelun Engineering Design and Research Institute Co., Ltd. | 11 |
4 |
| Resideo LLC | 1166 |
4 |
| Denso Wave Incorporated | 392 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 31330 |
3 |
| Johnson Controls Technology Company | 1432 |
3 |
| Other owners | 208 |