- 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: 1119
10-year publication summary
|
86
|
87
|
109
|
93
|
94
|
86
|
97
|
86
|
67
|
49
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valeo Systemes Thermiques | 2825 |
58 |
| Dana Canada Corporation | 268 |
47 |
| International Business Machines Corporation | 62671 |
19 |
| Cooler Master Co., Ltd. | 266 |
17 |
| MAHLE International GmbH | 2917 |
15 |
| Hamilton Sundstrand Corporation | 5014 |
14 |
| The Boeing Company | 20163 |
11 |
| Raytheon Company | 8448 |
11 |
| Applied Materials, Inc. | 20406 |
10 |
| Ebullient, Inc. | 20 |
10 |
| Nidec Corporation | 2817 |
10 |
| Mitsubishi Electric Corporation | 48048 |
9 |
| Nippon Light Metal Company, Ltd. | 683 |
9 |
| Toyota Motor Corporation | 35813 |
8 |
| Daikin Industries, Ltd. | 10504 |
8 |
| Hanon Systems | 2108 |
8 |
| Robert Bosch GmbH | 44176 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11124 |
7 |
| Asia Vital Components Co., Ltd. | 433 |
7 |
| Coolit Systems Inc. | 77 |
7 |
| Other owners | 827 |