- 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: 1612
10-year publication summary
|
147
|
171
|
203
|
175
|
151
|
123
|
113
|
115
|
91
|
70
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 707 |
105 |
| Denso Corporation | 24783 |
48 |
| Daikin Industries, Ltd. | 10166 |
36 |
| Carrier Corporation | 4009 |
28 |
| MAHLE International GmbH | 2828 |
28 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2866 |
25 |
| Novelis Inc. | 769 |
22 |
| Valeo Systemes Thermiques | 2762 |
22 |
| Mitsubishi Electric Corporation | 46926 |
18 |
| Alfa Laval Corporate AB | 1327 |
17 |
| Panasonic Intellectual Property Management Co., Ltd. | 32457 |
15 |
| Mitsubishi Aluminum Co., Ltd. | 56 |
15 |
| Stamicarbon B.V. | 303 |
15 |
| Novelis Koblenz GmbH | 86 |
15 |
| Nippon Light Metal Company, Ltd. | 672 |
14 |
| MA Aluminum Corporation | 46 |
14 |
| Samsung Electronics Co., Ltd. | 149087 |
13 |
| Hanon Systems | 2008 |
13 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3989 |
13 |
| General Electric Company | 13840 |
12 |
| Other owners | 1124 |