- 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 9/04 - 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 the conduits being formed by spirally-wound plates or laminae
Patent holdings for IPC class F28D 9/04
Total number of patents in this class: 110
10-year publication summary
|
5
|
8
|
8
|
10
|
7
|
12
|
8
|
6
|
11
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hyliion Holdings Corp. | 36 |
14 |
| Alfa Laval Corporate AB | 1325 |
7 |
| Fluid Handling LLC | 250 |
4 |
| Starfire Energy | 25 |
4 |
| General Electric Company | 13773 |
3 |
| Valeo Systemes Thermiques | 2794 |
3 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 312 |
3 |
| Shanghai Xingye Materials Technology Co., Ltd | 18 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10976 |
2 |
| Ateliers de Construction de Thermo-echangeurs SA | 2 |
2 |
| Inventys Thermal Technologies Inc. | 23 |
2 |
| Volvo Truck Corporation | 3689 |
2 |
| Welcon Inc. | 20 |
2 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 619 |
2 |
| Danfoss A/S | 1376 |
2 |
| Zhang, Zhifeng | 10 |
2 |
| Viessmann Climate Solutions SE | 126 |
2 |
| East Hailaer Power Plant of Hulunbeier Antai Thermal Power Co., Ltd | 17 |
2 |
| Honda Motor Co., Ltd. | 25764 |
1 |
| Pratt & Whitney Canada Corp. | 5056 |
1 |
| Other owners | 47 |