- 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: 1547
10-year publication summary
|
141
|
150
|
178
|
210
|
182
|
152
|
130
|
116
|
114
|
30
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 631 |
107 |
| Denso Corporation | 23338 |
50 |
| Daikin Industries, Ltd. | 9495 |
30 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
28 |
| Carrier Corporation | 4759 |
23 |
| MAHLE International GmbH | 2670 |
22 |
| Novelis Inc. | 656 |
22 |
| Mitsubishi Electric Corporation | 43934 |
18 |
| Valeo Systemes Thermiques | 2471 |
18 |
| Alfa Laval Corporate AB | 1265 |
17 |
| Behr GmbH & Co. KG | 437 |
17 |
| Mitsubishi Aluminum Co., Ltd. | 58 |
15 |
| Nippon Light Metal Company, Ltd. | 645 |
15 |
| General Electric Company | 18133 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
14 |
| MA Aluminum Corporation | 45 |
14 |
| Hanon Systems | 1632 |
13 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
13 |
| Mitsubishi Materials Corporation | 2378 |
13 |
| Stamicarbon B.V. | 265 |
13 |
| Other owners | 1071 |