- 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 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
Patent holdings for IPC class F28D 1/047
Total number of patents in this class: 991
10-year publication summary
|
121
|
117
|
105
|
90
|
69
|
67
|
63
|
46
|
44
|
40
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48172 |
87 |
| Daikin Industries, Ltd. | 10502 |
61 |
| LG Electronics Inc. | 75855 |
33 |
| Carrier Corporation | 3947 |
24 |
| Samsung Electronics Co., Ltd. | 158442 |
19 |
| Hamilton Sundstrand Corporation | 5014 |
19 |
| Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | 160 |
19 |
| BSH Hausgeräte GmbH | 5645 |
17 |
| Rtx Corporation | 10127 |
14 |
| BSH Bosch und Siemens Hausgerate GmbH | 2442 |
13 |
| Trane International Inc. | 1233 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 34265 |
12 |
| Arcelik A.S. | 3366 |
12 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 718 |
12 |
| General Electric Company | 13915 |
11 |
| Koninklijke Philips N.V. | 25938 |
11 |
| Baltimore Aircoil Company, Inc. | 183 |
11 |
| Valeo Systemes Thermiques | 2821 |
11 |
| Johnson Controls Light Commercial IP GmbH | 372 |
11 |
| Evapco, Inc. | 311 |
9 |
| Other owners | 572 |