- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 784
10-year publication summary
|
69
|
72
|
92
|
82
|
80
|
75
|
64
|
50
|
44
|
21
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daikin Industries, Ltd. | 9495 |
43 |
| Denso Corporation | 23338 |
36 |
| Mitsubishi Electric Corporation | 43934 |
33 |
| Carrier Corporation | 4759 |
15 |
| Hanon Systems | 1632 |
15 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
13 |
| Hamilton Sundstrand Corporation | 4525 |
13 |
| Dana Canada Corporation | 284 |
13 |
| MAHLE International GmbH | 2670 |
13 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
11 |
| Uop LLC | 4083 |
9 |
| Rheem Manufacturing Company | 861 |
9 |
| Danfoss A/S | 1259 |
9 |
| General Electric Company | 18133 |
8 |
| Casale SA | 572 |
8 |
| Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | 110 |
8 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 786 |
8 |
| Atlas Copco Airpower, naamloze vennootschap | 915 |
7 |
| T.RAD Co., Ltd. | 101 |
7 |
| Trane International Inc. | 1123 |
7 |
| Other owners | 499 |