- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 1567
10-year publication summary
|
151
|
178
|
210
|
182
|
153
|
129
|
116
|
116
|
89
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 666 |
107 |
| Denso Corporation | 23721 |
48 |
| Daikin Industries, Ltd. | 9810 |
33 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2905 |
29 |
| Carrier Corporation | 4444 |
26 |
| MAHLE International GmbH | 2690 |
23 |
| Novelis Inc. | 704 |
23 |
| Valeo Systemes Thermiques | 2597 |
20 |
| Mitsubishi Electric Corporation | 44738 |
17 |
| Alfa Laval Corporate AB | 1305 |
17 |
| Panasonic Intellectual Property Management Co., Ltd. | 29620 |
15 |
| Mitsubishi Aluminum Co., Ltd. | 58 |
15 |
| Nippon Light Metal Company, Ltd. | 650 |
15 |
| Behr GmbH & Co. KG | 354 |
14 |
| Stamicarbon B.V. | 276 |
14 |
| MA Aluminum Corporation | 45 |
14 |
| General Electric Company | 17803 |
13 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3585 |
13 |
| Hamilton Sundstrand Corporation | 4719 |
12 |
| Asia Vital Components Co., Ltd. | 402 |
12 |
| Other owners | 1087 |