- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
Patent holdings for IPC class F28F 13/08
Total number of patents in this class: 378
10-year publication summary
|
28
|
37
|
54
|
37
|
36
|
43
|
31
|
32
|
30
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
14 |
| Hamilton Sundstrand Corporation | 4525 |
14 |
| Acer Incorporated | 1864 |
9 |
| Rtx Corporation | 8674 |
8 |
| General Electric Company | 18133 |
6 |
| Denso Corporation | 23338 |
6 |
| Dow Global Technologies LLC | 10147 |
6 |
| Intergas Heating Assets B.V. | 41 |
6 |
| Safran Aero Boosters SA | 180 |
6 |
| Sumitomo Precision Products Co., Ltd. | 273 |
6 |
| Valeo Systemes Thermiques | 2471 |
6 |
| Daikin Industries, Ltd. | 9495 |
5 |
| The Boeing Company | 19843 |
4 |
| AIC S.A. | 50 |
4 |
| Dana Canada Corporation | 284 |
4 |
| IHI Corporation | 3268 |
4 |
| Mikutay Corporation | 11 |
4 |
| SAFRAN S.A. | 518 |
3 |
| International Business Machines Corporation | 60644 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| Other owners | 257 |