- 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: 1068
10-year publication summary
|
69
|
81
|
81
|
108
|
90
|
91
|
84
|
91
|
82
|
60
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valeo Systemes Thermiques | 2768 |
55 |
| Dana Canada Corporation | 272 |
47 |
| International Business Machines Corporation | 61747 |
19 |
| Cooler Master Co., Ltd. | 238 |
16 |
| Hamilton Sundstrand Corporation | 4956 |
14 |
| MAHLE International GmbH | 2838 |
13 |
| The Boeing Company | 20186 |
11 |
| Applied Materials, Inc. | 19298 |
10 |
| Raytheon Company | 8447 |
10 |
| Mitsubishi Electric Corporation | 46973 |
9 |
| Ebullient, Inc. | 19 |
9 |
| Nippon Light Metal Company, Ltd. | 672 |
9 |
| Toyota Motor Corporation | 33519 |
8 |
| Hanon Systems | 2009 |
8 |
| Daikin Industries, Ltd. | 10174 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10954 |
7 |
| Asia Vital Components Co., Ltd. | 418 |
7 |
| Modine Manufacturing Company | 313 |
7 |
| Nidec Corporation | 2705 |
7 |
| Kyocera Corporation | 14091 |
6 |
| Other owners | 789 |