- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 12/00 - Use of energy recovery systems in air conditioning, ventilation or screening
Patent holdings for IPC class F24F 12/00
Total number of patents in this class: 994
10-year publication summary
|
71
|
105
|
94
|
90
|
90
|
68
|
91
|
112
|
98
|
25
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nortek Air Solutions Canada, Inc. | 114 |
74 |
| Zehnder Group International AG | 391 |
30 |
| Mitsubishi Electric Corporation | 43934 |
29 |
| Carrier Corporation | 4759 |
21 |
| Lennox Industries Inc. | 1088 |
19 |
| Samsung Electronics Co., Ltd. | 131630 |
18 |
| LG Electronics Inc. | 69257 |
14 |
| Daikin Industries, Ltd. | 9495 |
14 |
| Venmar CES, Inc. | 19 |
14 |
| Core Energy Recovery Solutions Inc. | 27 |
12 |
| Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
11 |
| Broan-NuTone LLC | 459 |
10 |
| Haier Smart Home Co., Ltd. | 4882 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
9 |
| Panasonic Ecology Systems Guangdong Co., Ltd. | 112 |
9 |
| Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
9 |
| GREE Electric Appliances, Inc. of Zhuhai | 3007 |
8 |
| University of Saskatchewan | 450 |
8 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
8 |
| Panasonic Corporation | 20786 |
7 |
| Other owners | 660 |