- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contactheat storage plants or apparatus in general
- F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
Patent holdings for IPC class F28D 9/00
Total number of patents in this class: 2971
10-year publication summary
|
263
|
271
|
287
|
299
|
259
|
256
|
201
|
196
|
212
|
56
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alfa Laval Corporate AB | 1292 |
262 |
| Valeo Systemes Thermiques | 2665 |
162 |
| MAHLE International GmbH | 2722 |
74 |
| Dana Canada Corporation | 275 |
67 |
| Hanon Systems | 1865 |
65 |
| Mitsubishi Electric Corporation | 45414 |
64 |
| Hamilton Sundstrand Corporation | 4802 |
61 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3873 |
54 |
| SWEP International AB | 106 |
53 |
| Modine Manufacturing Company | 303 |
48 |
| Vahterus Oy | 71 |
40 |
| Daikin Industries, Ltd. | 9920 |
35 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 286 |
34 |
| Linde Aktiengesellschaft | 1534 |
33 |
| Denso Corporation | 24007 |
32 |
| Danfoss A/S | 1342 |
31 |
| Kyungdong Navien Co., Ltd. | 598 |
30 |
| IHI Corporation | 3379 |
27 |
| Valeo Autosystemy Sp. z o.o. | 133 |
27 |
| Hyundai Motor Company | 21174 |
22 |
| Other owners | 1750 |