- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 3/08 - Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
Patent holdings for IPC class F28F 3/08
Total number of patents in this class: 1336
10-year publication summary
|
81
|
97
|
112
|
115
|
120
|
126
|
84
|
73
|
68
|
71
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alfa Laval Corporate AB | 1322 |
143 |
| Mitsubishi Electric Corporation | 46765 |
101 |
| Denso Corporation | 24692 |
58 |
| Dana Canada Corporation | 272 |
50 |
| Daikin Industries, Ltd. | 10142 |
41 |
| Panasonic Intellectual Property Management Co., Ltd. | 32244 |
32 |
| T.RAD Co., Ltd. | 100 |
25 |
| Valeo Systemes Thermiques | 2756 |
24 |
| IHI Corporation | 3461 |
23 |
| MAHLE International GmbH | 2821 |
22 |
| Danfoss A/S | 1360 |
22 |
| Hamilton Sundstrand Corporation | 4950 |
20 |
| Hanon Systems | 2000 |
16 |
| Modine Manufacturing Company | 311 |
15 |
| Shinko Electric Industries Co., Ltd. | 1216 |
14 |
| Hisaka Works, Ltd. | 32 |
12 |
| Fujitsu General Limited | 626 |
10 |
| Sumitomo Precision Products Co., Ltd. | 311 |
10 |
| SWEP International AB | 103 |
10 |
| T. Rad Co., Ltd. | 29 |
9 |
| Other owners | 679 |