- 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: 1317
10-year publication summary
|
146
|
146
|
152
|
108
|
106
|
85
|
78
|
100
|
69
|
45
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 5012 |
53 |
| Valeo Systemes Thermiques | 2819 |
41 |
| Alfa Laval Corporate AB | 1347 |
32 |
| Modine Manufacturing Company | 301 |
31 |
| Denso Corporation | 25909 |
28 |
| Dana Canada Corporation | 266 |
24 |
| Manufacturing Resources International, Inc. | 535 |
18 |
| MAHLE International GmbH | 2931 |
17 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4152 |
16 |
| Rtx Corporation | 10240 |
16 |
| Raytheon Company | 8457 |
15 |
| Toyota Motor Corporation | 36465 |
13 |
| International Business Machines Corporation | 62871 |
12 |
| Mitsubishi Electric Corporation | 48508 |
11 |
| Huawei Technologies Co., Ltd. | 125590 |
11 |
| Cooler Master Co., Ltd. | 270 |
11 |
| Hanon Systems | 2147 |
11 |
| Safran Aircraft Engines | 6811 |
10 |
| Evapco, Inc. | 320 |
9 |
| Liebherr-Aerospace Toulouse SAS | 164 |
9 |
| Other owners | 929 |