- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 3/02 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
Patent holdings for IPC class F28F 3/02
Total number of patents in this class: 1288
10-year publication summary
|
141
|
141
|
148
|
106
|
104
|
84
|
78
|
95
|
64
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 5014 |
53 |
| Valeo Systemes Thermiques | 2808 |
39 |
| Alfa Laval Corporate AB | 1330 |
32 |
| Modine Manufacturing Company | 305 |
32 |
| Denso Corporation | 25153 |
27 |
| Dana Canada Corporation | 270 |
24 |
| Manufacturing Resources International, Inc. | 524 |
18 |
| MAHLE International GmbH | 2874 |
17 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4046 |
16 |
| Raytheon Company | 8461 |
15 |
| Rtx Corporation | 9843 |
14 |
| Toyota Motor Corporation | 34468 |
13 |
| International Business Machines Corporation | 62153 |
12 |
| Mitsubishi Electric Corporation | 47529 |
11 |
| Huawei Technologies Co., Ltd. | 119724 |
11 |
| Cooler Master Co., Ltd. | 254 |
11 |
| Hanon Systems | 2061 |
10 |
| Safran Aircraft Engines | 6523 |
10 |
| Evapco, Inc. | 303 |
9 |
| The Boeing Company | 20097 |
8 |
| Other owners | 906 |