- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 11/88 - Electrical aspects, e.g. circuits
Patent holdings for IPC class F24F 11/88
Total number of patents in this class: 1000
10-year publication summary
4
|
8
|
6
|
46
|
123
|
131
|
146
|
162
|
130
|
61
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Electric Corporation | 43934 |
101 |
Haier Smart Home Co., Ltd. | 4882 |
87 |
Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
83 |
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
76 |
Daikin Industries, Ltd. | 9495 |
52 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
46 |
Midea Group Co., Ltd. | 4025 |
38 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
35 |
Tyco Fire & Security GmbH | 2172 |
33 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
32 |
Samsung Electronics Co., Ltd. | 131630 |
28 |
GD Midea Heating & Ventilating Equipment Co., Ltd. | 428 |
23 |
Ademco Inc. | 1374 |
21 |
LG Electronics Inc. | 69257 |
15 |
Carrier Corporation | 4759 |
14 |
Lennox Industries Inc. | 1088 |
14 |
Hitachi-johnson Controls Air Conditioning, Inc. | 499 |
14 |
PassiveLogic, Inc. | 148 |
13 |
Lutron Technology Company LLC | 2300 |
10 |
Google LLC | 38759 |
9 |
Other owners | 256 |