- 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: 3025
10-year publication summary
|
248
|
257
|
266
|
291
|
250
|
249
|
190
|
193
|
213
|
111
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alfa Laval Corporate AB | 1317 |
271 |
| Valeo Systemes Thermiques | 2733 |
172 |
| MAHLE International GmbH | 2784 |
73 |
| Hanon Systems | 1972 |
70 |
| Dana Canada Corporation | 273 |
66 |
| Mitsubishi Electric Corporation | 46397 |
65 |
| Hamilton Sundstrand Corporation | 4907 |
61 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3994 |
56 |
| SWEP International AB | 103 |
52 |
| Modine Manufacturing Company | 308 |
49 |
| Vahterus Oy | 71 |
41 |
| Daikin Industries, Ltd. | 10070 |
37 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 300 |
34 |
| Linde Aktiengesellschaft | 1497 |
33 |
| Denso Corporation | 24431 |
32 |
| Danfoss A/S | 1353 |
32 |
| Kyungdong Navien Co., Ltd. | 618 |
31 |
| IHI Corporation | 3449 |
27 |
| Valeo Autosystemy Sp. z o.o. | 133 |
27 |
| Hyundai Motor Company | 22257 |
21 |
| Other owners | 1775 |