- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 13/28 - Arrangement or mounting of filters
Patent holdings for IPC class F24F 13/28
Total number of patents in this class: 1515
10-year publication summary
47
|
82
|
184
|
153
|
179
|
170
|
202
|
201
|
146
|
32
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
LG Electronics Inc. | 69257 |
153 |
Daikin Industries, Ltd. | 9495 |
79 |
Samsung Electronics Co., Ltd. | 131630 |
66 |
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
47 |
Mitsubishi Electric Corporation | 43934 |
45 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
45 |
Midea Group Co., Ltd. | 4025 |
38 |
Sharp Kabushiki Kaisha | 18957 |
33 |
3m Innovative Properties Company | 18406 |
31 |
Haier Smart Home Co., Ltd. | 4882 |
28 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
22 |
Coway Co., Ltd. | 649 |
21 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
20 |
Camfil AB | 226 |
20 |
Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
17 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
17 |
Carrier Corporation | 4759 |
15 |
Matsushita Electric Industrial Co., Ltd. | 4724 |
12 |
Shanghai Bixiufu Enterprise Management Co., Ltd. | 201 |
11 |
Tyco Fire & Security GmbH | 2172 |
10 |
Other owners | 785 |