- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 1181
10-year publication summary
90
|
131
|
146
|
146
|
151
|
108
|
104
|
82
|
75
|
37
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hamilton Sundstrand Corporation | 4525 |
51 |
Valeo Systemes Thermiques | 2471 |
31 |
Alfa Laval Corporate AB | 1265 |
30 |
Modine Manufacturing Company | 305 |
30 |
Denso Corporation | 23338 |
25 |
Dana Canada Corporation | 284 |
25 |
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
16 |
Raytheon Company | 8535 |
15 |
Manufacturing Resources International, Inc. | 441 |
15 |
Toyota Motor Corporation | 28582 |
14 |
International Business Machines Corporation | 60644 |
13 |
Mitsubishi Electric Corporation | 43934 |
12 |
MAHLE International GmbH | 2670 |
12 |
Huawei Technologies Co., Ltd. | 100781 |
11 |
Behr GmbH & Co. KG | 437 |
11 |
Safran Aircraft Engines | 5739 |
10 |
Rtx Corporation | 8674 |
10 |
The Boeing Company | 19843 |
9 |
Evapco, Inc. | 244 |
9 |
Kyungdong Navien Co., Ltd. | 566 |
9 |
Other owners | 823 |