- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 3/12 - Elements constructed in the shape of a hollow panel, e.g. with channels
Patent holdings for IPC class F28F 3/12
Total number of patents in this class: 1024
10-year publication summary
|
72
|
86
|
87
|
109
|
93
|
94
|
86
|
90
|
82
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valeo Systemes Thermiques | 2696 |
53 |
| Dana Canada Corporation | 273 |
47 |
| International Business Machines Corporation | 61023 |
19 |
| Cooler Master Co., Ltd. | 225 |
16 |
| Hamilton Sundstrand Corporation | 4832 |
14 |
| The Boeing Company | 20013 |
11 |
| Raytheon Company | 8388 |
11 |
| Applied Materials, Inc. | 18406 |
10 |
| MAHLE International GmbH | 2743 |
10 |
| Mitsubishi Electric Corporation | 45811 |
9 |
| Ebullient, Inc. | 19 |
9 |
| Nippon Light Metal Company, Ltd. | 661 |
9 |
| Hanon Systems | 1894 |
8 |
| Toyota Motor Corporation | 31451 |
7 |
| Daikin Industries, Ltd. | 9957 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10837 |
7 |
| Asia Vital Components Co., Ltd. | 404 |
7 |
| Nidec Corporation | 2644 |
7 |
| Kyocera Corporation | 13689 |
6 |
| Modine Manufacturing Company | 307 |
6 |
| Other owners | 751 |