- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24F - Air-conditioning; air-humidification; ventilation; use of air currents for screening
- F24F 11/32 - Responding to malfunctions or emergencies
Patent holdings for IPC class F24F 11/32
Total number of patents in this class: 499
10-year publication summary
8
|
18
|
29
|
53
|
60
|
80
|
75
|
62
|
55
|
19
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Electric Corporation | 43934 |
45 |
Daikin Industries, Ltd. | 9495 |
33 |
Qingdao Haier Air Conditioner General Corp.,ltd | 2228 |
23 |
Tyco Fire & Security GmbH | 2172 |
22 |
Haier Smart Home Co., Ltd. | 4882 |
22 |
Qingdao Haier Air-Conditioning Electronic Co., Ltd. | 1721 |
22 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
22 |
Lennox Industries Inc. | 1088 |
17 |
Honeywell International Inc. | 13799 |
15 |
PassiveLogic, Inc. | 148 |
13 |
Johnson Controls Technology Company | 1522 |
12 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
12 |
Midea Group Co., Ltd. | 4025 |
12 |
GD Midea Air-Conditioning Equipment Co., Ltd. | 1475 |
9 |
Trane International Inc. | 1123 |
9 |
LG Electronics Inc. | 69257 |
8 |
Belimo Holding AG | 235 |
8 |
Carrier Corporation | 4759 |
7 |
GD Midea Heating & Ventilating Equipment Co., Ltd. | 428 |
7 |
Google LLC | 38759 |
7 |
Other owners | 174 |