- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
Patent holdings for IPC class F28F 21/08
Total number of patents in this class: 1650
10-year publication summary
|
171
|
203
|
175
|
151
|
123
|
114
|
117
|
91
|
71
|
35
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 723 |
105 |
| Denso Corporation | 25165 |
48 |
| Daikin Industries, Ltd. | 10375 |
36 |
| Carrier Corporation | 3968 |
28 |
| MAHLE International GmbH | 2879 |
28 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2839 |
25 |
| Novelis Inc. | 767 |
22 |
| Valeo Systemes Thermiques | 2809 |
22 |
| Mitsubishi Electric Corporation | 47556 |
18 |
| Alfa Laval Corporate AB | 1328 |
18 |
| Samsung Electronics Co., Ltd. | 153573 |
17 |
| Panasonic Intellectual Property Management Co., Ltd. | 33462 |
15 |
| Mitsubishi Aluminum Co., Ltd. | 56 |
15 |
| Stamicarbon B.V. | 313 |
15 |
| Novelis Koblenz GmbH | 85 |
15 |
| Nippon Light Metal Company, Ltd. | 679 |
14 |
| MA Aluminum Corporation | 47 |
14 |
| Hanon Systems | 2067 |
13 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4050 |
13 |
| Mitsubishi Materials Corporation | 2459 |
13 |
| Other owners | 1156 |