- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 120/20 - Feedback from users
Patent holdings for IPC class F24F 120/20
Total number of patents in this class: 287
10-year publication summary
|
9
|
26
|
28
|
39
|
41
|
39
|
46
|
18
|
20
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
18 |
| Tyco Fire & Security GmbH | 2172 |
16 |
| Samsung Electronics Co., Ltd. | 131630 |
15 |
| Ademco Inc. | 1374 |
15 |
| Google LLC | 38759 |
14 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
12 |
| Carrier Corporation | 4759 |
11 |
| Johnson Controls Technology Company | 1522 |
10 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
10 |
| Haier Smart Home Co., Ltd. | 4882 |
10 |
| Daikin Industries, Ltd. | 9495 |
9 |
| Trane International Inc. | 1123 |
9 |
| Honeywell International Inc. | 13799 |
8 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
8 |
| Lennox Industries Inc. | 1088 |
7 |
| LG Electronics Inc. | 69257 |
6 |
| EcoFactor, Inc. | 46 |
4 |
| Copeland Comfort Control LP | 271 |
4 |
| International Business Machines Corporation | 60644 |
3 |
| Delta Electronics, Inc. | 2401 |
3 |
| Other owners | 95 |