- 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: 957
10-year publication summary
|
98
|
117
|
113
|
102
|
83
|
66
|
66
|
61
|
44
|
43
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47065 |
85 |
| Daikin Industries, Ltd. | 10169 |
58 |
| LG Electronics Inc. | 73936 |
30 |
| Carrier Corporation | 3993 |
24 |
| Hamilton Sundstrand Corporation | 4971 |
18 |
| Samsung Electronics Co., Ltd. | 149582 |
17 |
| Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | 146 |
17 |
| BSH Hausgeräte GmbH | 5556 |
16 |
| BSH Bosch und Siemens Hausgerate GmbH | 2695 |
14 |
| Trane International Inc. | 1205 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 32590 |
12 |
| Arcelik A.S. | 3450 |
12 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 597 |
12 |
| Rtx Corporation | 9624 |
12 |
| General Electric Company | 13801 |
11 |
| Koninklijke Philips N.V. | 25193 |
11 |
| Baltimore Aircoil Company, Inc. | 178 |
11 |
| Johnson Controls Light Commercial IP GmbH | 371 |
11 |
| Evapco, Inc. | 296 |
10 |
| Valeo Systemes Thermiques | 2771 |
9 |
| Other owners | 554 |