- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 3/147 - 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 treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification with both heat and humidity transfer between supplied and exhausted air
Patent holdings for IPC class F24F 3/147
Total number of patents in this class: 313
10-year publication summary
23
|
48
|
38
|
22
|
35
|
25
|
25
|
17
|
22
|
9
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Daikin Industries, Ltd. | 9495 |
25 |
Nortek Air Solutions Canada, Inc. | 114 |
25 |
Mitsubishi Electric Corporation | 43934 |
18 |
Core Energy Recovery Solutions Inc. | 27 |
12 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
8 |
University of Saskatchewan | 450 |
8 |
Zehnder Group International AG | 391 |
8 |
King Fahd University of Petroleum and Minerals | 779 |
6 |
Max Co., Ltd. | 880 |
6 |
2ndAir B.V. | 7 |
5 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
4 |
Mayekawa Mfg. Co., Ltd. | 327 |
4 |
Taikisha Ltd. | 110 |
4 |
Copeland LP | 656 |
4 |
DPoint Technologies Inc. | 7 |
3 |
Harvest Air, LLC. | 4 |
3 |
Japan Exlan Company Limited | 60 |
3 |
Midea Group Co., Ltd. | 4025 |
3 |
Mitsubishi Paper Mills Limited | 246 |
3 |
NovelAire Technologies, LLC | 8 |
3 |
Other owners | 158 |