- 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: 1078
10-year publication summary
|
81
|
81
|
108
|
90
|
91
|
84
|
92
|
83
|
65
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valeo Systemes Thermiques | 2778 |
55 |
| Dana Canada Corporation | 272 |
47 |
| International Business Machines Corporation | 61843 |
19 |
| Cooler Master Co., Ltd. | 240 |
16 |
| Hamilton Sundstrand Corporation | 4985 |
14 |
| MAHLE International GmbH | 2831 |
13 |
| The Boeing Company | 20073 |
11 |
| Applied Materials, Inc. | 19431 |
10 |
| Raytheon Company | 8463 |
10 |
| Ebullient, Inc. | 20 |
10 |
| Mitsubishi Electric Corporation | 47175 |
9 |
| Nippon Light Metal Company, Ltd. | 674 |
9 |
| Toyota Motor Corporation | 33713 |
8 |
| Daikin Industries, Ltd. | 10173 |
8 |
| Hanon Systems | 2022 |
8 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10979 |
7 |
| Asia Vital Components Co., Ltd. | 424 |
7 |
| Coolit Systems Inc. | 70 |
7 |
| Modine Manufacturing Company | 313 |
7 |
| Nidec Corporation | 2720 |
7 |
| Other owners | 796 |