- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 9/00 - Use of air currents for screening, e.g. air curtains
Patent holdings for IPC class F24F 9/00
Total number of patents in this class: 256
10-year publication summary
14
|
11
|
23
|
15
|
21
|
25
|
39
|
55
|
29
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
12 |
Wirth Doors Limited | 6 |
6 |
LG Electronics Inc. | 69257 |
5 |
Biddle B.V. | 8 |
5 |
Koken Ltd. | 64 |
5 |
Mitsubishi Electric Corporation | 43934 |
4 |
Carrier Corporation | 4759 |
4 |
Airsonett AB | 18 |
4 |
Avidicare AB | 11 |
4 |
Berner International Corporation | 5 |
4 |
Handelsmaatschappij Willy Deweerdt BVBA | 10 |
4 |
Denso Corporation | 23338 |
3 |
Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
3 |
Duerr Systems AG | 175 |
3 |
HCR, Inc. | 9 |
3 |
Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
3 |
Howorth Air Technology Limited | 8 |
3 |
Japan Tobacco Inc. | 3225 |
3 |
Seegene, Inc. | 312 |
3 |
Aeolus Air Devices, L.L.C., Robert Dockery, Jahmal Neff, Zelnick Munn, DBA Aeolus Air Devices | 3 |
3 |
Other owners | 172 |