- 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: 1670
10-year publication summary
|
178
|
210
|
182
|
153
|
129
|
120
|
122
|
91
|
72
|
58
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 740 |
105 |
| Denso Corporation | 25579 |
48 |
| Daikin Industries, Ltd. | 10504 |
37 |
| Carrier Corporation | 3951 |
28 |
| MAHLE International GmbH | 2917 |
27 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2836 |
25 |
| Novelis Inc. | 781 |
22 |
| Valeo Systemes Thermiques | 2825 |
22 |
| Samsung Electronics Co., Ltd. | 157946 |
18 |
| Mitsubishi Electric Corporation | 48048 |
18 |
| Alfa Laval Corporate AB | 1336 |
18 |
| Stamicarbon B.V. | 321 |
17 |
| Novelis Koblenz GmbH | 85 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
15 |
| Mitsubishi Aluminum Co., Ltd. | 56 |
15 |
| Nippon Light Metal Company, Ltd. | 683 |
14 |
| MA Aluminum Corporation | 48 |
14 |
| Hamilton Sundstrand Corporation | 5014 |
13 |
| Hanon Systems | 2108 |
13 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4118 |
13 |
| Other owners | 1172 |