- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24F - Air-conditioningair-humidificationventilationuse 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: 285
10-year publication summary
|
23
|
15
|
21
|
25
|
41
|
57
|
30
|
20
|
14
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 33997 |
15 |
| LG Electronics Inc. | 75694 |
6 |
| Mitsubishi Electric Corporation | 48018 |
6 |
| Wirth Doors Limited | 6 |
6 |
| Samsung Electronics Co., Ltd. | 157719 |
5 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48302 |
5 |
| Carrier Corporation | 3955 |
4 |
| Airsonett AB | 18 |
4 |
| Avidicare AB | 12 |
4 |
| Berner International Corporation | 4 |
4 |
| Handelsmaatschappij Willy Deweerdt BVBA | 5 |
4 |
| HCL Technologies Limited | 644 |
4 |
| Koken Ltd. | 65 |
4 |
| Aeolus Air Devices, L.L.C., Robert Dockery, Jahmal Neff, Zelnick Munn, DBA Aeolus Air Devices | 5 |
4 |
| Denso Corporation | 25534 |
3 |
| Avex-SG Technology Inc. | 7 |
3 |
| Biddle B.V. | 6 |
3 |
| Duerr Systems AG | 251 |
3 |
| HCR, Inc. | 3 |
3 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1541 |
3 |
| Other owners | 192 |