- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 9/22 - Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
Patent holdings for IPC class F28F 9/22
Total number of patents in this class: 880
10-year publication summary
|
92
|
82
|
80
|
75
|
67
|
54
|
47
|
65
|
55
|
29
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48172 |
51 |
| Daikin Industries, Ltd. | 10502 |
47 |
| Denso Corporation | 25645 |
40 |
| Hanon Systems | 2125 |
18 |
| Carrier Corporation | 3947 |
17 |
| Hamilton Sundstrand Corporation | 5014 |
15 |
| Mitsubishi Heavy Industries, Ltd. | 9168 |
14 |
| MAHLE International GmbH | 2920 |
13 |
| Tyco Fire & Security GmbH | 3672 |
13 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 976 |
10 |
| Uop LLC | 4390 |
9 |
| Dana Canada Corporation | 267 |
9 |
| Valeo Systemes Thermiques | 2821 |
9 |
| Danfoss A/S | 1445 |
9 |
| Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | 160 |
8 |
| T.RAD Co., Ltd. | 105 |
8 |
| General Electric Company | 13915 |
7 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
7 |
| Casale SA | 639 |
7 |
| Rheem Manufacturing Company | 1026 |
7 |
| Other owners | 562 |